No response time received

i got this
org.jivesoftware.smack.SmackException$NoResponseException: No response received within reply timeout. Timeout was 10000ms (~10s). While waiting for establishing TLS [XMPPTCPConnection[not-authenticated] (2)]
at org.jivesoftware.smack.SmackException$NoResponseException.newWith(SmackException.java:99)
at org.jivesoftware.smack.AbstractXMPPConnection.waitForConditionOrThrowConnectionException(AbstractXMPPConnection.java:731)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection.java:857)
at org.jivesoftware.smack.AbstractXMPPConnection.connect(AbstractXMPPConnection.java:526)
at org.jivesoftware.gui.LoginUIPanel.login(LoginUIPanel.java:1253)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1589)
help me how to fix this
i dont know how