Неверное имя пользователя или пароль | Invalid username or password

Всем привет!
Спонтанно, а именно выборочно то пускает, то не пускает пользователей в Spark, ругается на логин/пароль?
Я не особо силен в программировании Java, да и по логам придется искать в интернете год, помогите своими идеями по данной проблеме?

Hello!
Spontaneously, namely, it selectively allows, it does not allow users in Spark, swears at the login / password?
I am not particularly good at Java programming, and I’m going to have to search the Internet for a year, help me with my ideas on this issue?

Log Spark
errors.log
12.03.2019 6:34:37 org.jivesoftware.spark.util.log.Log error
SEVERE:
No response from the server.:
at org.jivesoftware.smackx.PrivateDataManager.getPrivateData(PrivateDataManager.java:209)
at org.jivesoftware.sparkimpl.plugin.scratchpad.Tasks.getTaskList(Tasks.java:205)
at org.jivesoftware.sparkimpl.plugin.scratchpad.TaskNotification$2.run(TaskNotification.java:73)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

warn.log
12.03.2019 17:13:52 org.jivesoftware.spark.util.log.Log warning
WARNING: Exception in Login:
Connection failed. No response from server.:
at org.jivesoftware.smack.PacketReader.startup(PacketReader.java:119)
at org.jivesoftware.smack.XMPPConnection.initConnection(XMPPConnection.java:568)
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:527)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:953)
at org.jivesoftware.LoginDialog$LoginPanel.login(LoginDialog.java:1009)
at org.jivesoftware.LoginDialog$LoginPanel.access$1200(LoginDialog.java:219)
at org.jivesoftware.LoginDialog$LoginPanel$4.construct(LoginDialog.java:730)
at org.jivesoftware.spark.util.SwingWorker$2.run(SwingWorker.java:141)
at java.lang.Thread.run(Unknown Source)

Какие еще логи скинуть?

What other logs to throw?

What versions of Openfire and Spark? Also check Openfire logs at /openfire/logs/all.log

Version Spark 2.8.3, openfire 4.3.2
all.log
2019.03.13 08:33:16 INFO [Thread-2]: org.jivesoftware.openfire.XMPPServer - Shutting down 50 modules …
2019.03.13 08:33:19 WARN [socket_c2s-thread-2]: org.jivesoftware.openfire.nio.ConnectionHandler - Closing connection due to exception in session: (0x000000A3: nio socket, server, null => 0.0.0.0/0.0.0.0:5222)
org.apache.mina.core.write.WriteToClosedSessionException: null
at org.apache.mina.core.polling.AbstractPollingIoProcessor.clearWriteRequestQueue(AbstractPollingIoProcessor.java:638) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.removeNow(AbstractPollingIoProcessor.java:590) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.removeSessions(AbstractPollingIoProcessor.java:560) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$800(AbstractPollingIoProcessor.java:67) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1132) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) ~[mina-core-2.0.7.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:1.8.0_201]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
2019.03.13 08:33:19 WARN [socket_c2s-thread-11]: org.jivesoftware.openfire.nio.ConnectionHandler - Closing connection due to exception in session: (0x0000000B: nio socket, server, null => 0.0.0.0/0.0.0.0:5222)
org.apache.mina.core.write.WriteToClosedSessionException: null
at org.apache.mina.core.polling.AbstractPollingIoProcessor.clearWriteRequestQueue(AbstractPollingIoProcessor.java:638) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.removeNow(AbstractPollingIoProcessor.java:590) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.removeSessions(AbstractPollingIoProcessor.java:560) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$800(AbstractPollingIoProcessor.java:67) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1132) ~[mina-core-2.0.7.jar:?]
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) ~[mina-core-2.0.7.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:1.8.0_201]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.pubsub.PubSubPersistenceManager - Flushing write cache to database
2019.03.13 08:33:19 ERROR [Thread-2]: org.jivesoftware.openfire.pubsub.PubSubPersistenceManager - ������������ ��������� ����� ��������� ����� “LEFT”.
java.sql.BatchUpdateException: ������������ ��������� ����� ��������� ����� “LEFT”.
at net.sourceforge.jtds.jdbc.JtdsStatement.executeBatch(JtdsStatement.java:1069) ~[jtds-1.3.1.jar:1.3.1]
at org.apache.commons.dbcp2.DelegatingStatement.executeBatch(DelegatingStatement.java:223) ~[commons-dbcp2-2.5.0.jar:2.5.0]
at org.apache.commons.dbcp2.DelegatingStatement.executeBatch(DelegatingStatement.java:223) ~[commons-dbcp2-2.5.0.jar:2.5.0]
at org.jivesoftware.openfire.pubsub.PubSubPersistenceManager.purgeItems(PubSubPersistenceManager.java:1893) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.pubsub.PubSubPersistenceManager.shutdown(PubSubPersistenceManager.java:1954) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.pubsub.PubSubEngine.shutdown(PubSubEngine.java:1949) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.pubsub.PubSubModule.stop(PubSubModule.java:520) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.XMPPServer.shutdownServer(XMPPServer.java:1149) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.XMPPServer.access$800(XMPPServer.java:152) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.XMPPServer$ShutdownHookThread.run(XMPPServer.java:1095) [xmppserver-4.3.2.jar:4.3.2]
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[socket_c2s] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[socket_c2s-legacyMode] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[socket_s2s] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[socket_s2s-legacyMode] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[component] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[component-legacyMode] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.spi.ConnectionListener[connection_manager-legacyMode] - Stopped.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.http.HttpSessionManager - Stopping instance
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.http.HttpBindManager - HTTP bind service stopped
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.XMPPServer - Shutting down plugins …
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Shutting down. Unloading all loaded plugins…
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘admin’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘avatarresizer’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘bookmarks’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘clientcontrol’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘contentfilter’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘httpfileupload’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘monitoring’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘search’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘userimportexport’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.container.PluginManager - Unloaded plugin ‘userstatus’.
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.XMPPServer - Openfire stopped
2019.03.13 08:33:19 INFO [Thread-2]: org.jivesoftware.openfire.XMPPServer - Server halted
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.openfire.XMPPServer - Registering shutdown hook (standalone mode)
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Routing Servers Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Routing Components Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Routing Users Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Routing AnonymousUsers Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Routing User Sessions
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Roster
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Multicast Service
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Offline Message Size
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for VCard
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Privacy Lists
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for File Transfer Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Offline Presence Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Last Activity Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for User
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Remote Users Existence
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for LDAP UserDN
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Components Sessions
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Connection Managers Sessions
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Incoming Server Sessions
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Sessions by Hostname
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Validated Domains
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Client Session Info Cache
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created local-only cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Entity Capabilities
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created local-only cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Entity Capabilities Users
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Directed Presences
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created local-only cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for PEPServiceManager
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for File Transfer
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Published Items
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Disco Server Features
2019.03.13 08:33:38 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Disco Server Items
2019.03.13 08:33:39 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Group
2019.03.13 08:33:39 INFO [main]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Group Metadata Cache
2019.03.13 08:33:39 WARN [main]: org.jivesoftware.util.LocaleUtils - Missing resource for key: short.title in locale ru_RU
2019.03.13 08:33:39 INFO [main]: org.jivesoftware.openfire.XMPPServer - 4.3.2 [13.03.2019 8:33:39]
2019.03.13 08:33:39 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.EncryptionArtifactFactory - Creating new SslContextFactory instance
2019.03.13 08:33:40 INFO [pool-5-thread-1]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Favicon Misses
2019.03.13 08:33:40 INFO [pool-5-thread-1]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Favicon Hits
2019.03.13 08:33:40 INFO [pool-5-thread-1]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘admin’.
2019.03.13 08:33:40 ERROR [pool-6-thread-4]: org.jivesoftware.openfire.container.PluginManager - An exception occurred while loading plugin ‘broadcast’:
java.lang.ClassNotFoundException: org.jivesoftware.openfire.plugin.BroadcastPlugin
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_201]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_201]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_201]
at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java:544) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:354) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:342) [xmppserver-4.3.2.jar:4.3.2]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_201]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
2019.03.13 08:33:40 INFO [pool-6-thread-2]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘avatarresizer’.
2019.03.13 08:33:40 INFO [pool-6-thread-4]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘contentfilter’.
2019.03.13 08:33:40 ERROR [pool-6-thread-4]: org.jivesoftware.openfire.container.PluginManager - An exception occurred while loading plugin ‘loadstats’:
java.lang.ClassNotFoundException: org.jivesoftware.openfire.plugin.StatisticPlugin
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_201]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_201]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_201]
at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java:544) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:354) [xmppserver-4.3.2.jar:4.3.2]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:342) [xmppserver-4.3.2.jar:4.3.2]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_201]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
2019.03.13 08:33:40 INFO [pool-6-thread-1]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘clientcontrol’.
2019.03.13 08:33:41 INFO [pool-6-thread-3]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘bookmarks’.
2019.03.13 08:33:41 INFO [pool-6-thread-2]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘httpfileupload’.
2019.03.13 08:33:41 INFO [pool-6-thread-1]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘search’.
2019.03.13 08:33:41 INFO [pool-6-thread-3]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘userimportexport’.
2019.03.13 08:33:41 INFO [pool-6-thread-2]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘userstatus’.
2019.03.13 08:33:45 INFO [pool-6-thread-4]: org.jivesoftware.openfire.container.PluginManager - Successfully loaded plugin ‘monitoring’.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.container.PluginMonitor - Finished processing all plugins.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[socket_c2s] - Started.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[socket_c2s-legacyMode] - Started.
2019.03.13 08:33:45 WARN [pool-5-thread-1]: org.jivesoftware.openfire.spi.LegacyConnectionAcceptor - Configuration allows for up to 16 threads, although implementation is limited to exactly one.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[socket_s2s] - Started.
2019.03.13 08:33:45 WARN [pool-5-thread-1]: org.jivesoftware.openfire.spi.LegacyConnectionAcceptor - Configuration allows for up to 16 threads, although implementation is limited to exactly one.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[socket_s2s-legacyMode] - Started.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[component] - Started.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘EXTERNAL’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘PLAIN’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘SCRAM-SHA-1’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘ANONYMOUS’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘DIGEST-MD5’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘NTLM’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘CRAM-MD5’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘GSSAPI’ SASL mechanism.
2019.03.13 08:33:45 INFO [socket_c2s-thread-2]: org.jivesoftware.openfire.net.SASLAuthentication - Support added for the ‘JIVE-SHAREDSECRET’ SASL mechanism.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[component-legacyMode] - Started.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.ConnectionListener[connection_manager-legacyMode] - Started.
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.spi.EncryptionArtifactFactory - Creating new SslContextFactory instance
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.http.HttpSessionManager - Starting instance
2019.03.13 08:33:45 INFO [pool-5-thread-1]: org.jivesoftware.openfire.http.HttpBindManager - HTTP bind service started
2019.03.13 08:33:46 INFO [socket_c2s-thread-6]: org.jivesoftware.util.cache.CacheFactory - Created cache [org.jivesoftware.util.cache.DefaultLocalCacheStrategy] for Locked Out Accounts
2019.03.13 08:33:46 WARN [socket_c2s-thread-3]: org.jivesoftware.openfire.nio.OfflinePacketDeliverer - �� ������� ���������������� �����

It looks like you have just started the server and then copied the logs. I don’t see any useful for your problem here. You need to check the logs when the problem happens for some of the clients and see if there are entries in the log at the same time.

So far the only thing i can see is
WARNING: Exception in Login:
Connection failed. No response from server.:

in Spark log, which doesn’t say much. For some reason can’t reach the server. Maybe server is overloaded. Do you see CPU/Memory spikes? Maybe server is running low on memory (this should result in OutOfMemory errors in the logs though). You can try increasing Java memory used by Openfire via vmoptions file as described here in Custom Parameters http://download.igniterealtime.org/openfire/docs/latest/documentation/install-guide.html