Usuarios o contraseñas invalidas

org.jivesoftware.smack.sasl.SASLErrorException: SASLError using PLAIN: not-authorized
at org.jivesoftware.smack.SASLAuthentication.authenticationFailed(SASLAuthentication.java:286)
at org.jivesoftware.smack.AbstractXMPPConnection.lambda$new$2(AbstractXMPPConnection.java:407)
at org.jivesoftware.smack.NonzaCallback$ClassAndConsumer.accept(NonzaCallback.java:177)
at org.jivesoftware.smack.NonzaCallback$ClassAndConsumer.access$200(NonzaCallback.java:166)
at org.jivesoftware.smack.NonzaCallback.onNonzaReceived(NonzaCallback.java:46)
at org.jivesoftware.smack.AbstractXMPPConnection.parseAndProcessNonza(AbstractXMPPConnection.java:1440)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.access$1700(XMPPTCPConnection.java:131)
at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.parsePackets(XMPPTCPConnection.java:1010)
at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.access$700(XMPPTCPConnection.java:916)
at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader$1.run(XMPPTCPConnection.java:939)
at java.lang.Thread.run(Unknown Source)

This is an error that typically happens when an end-user provides the wrong username or password when logging into Spark.

en este caso no creo que sea eso por que esta pasando con todos los usuarios y no nos deja ingresar a la plataforma

If all users experience the same problem on a platform that was working fine earlier, then there likely is a problem in Openfire. Without further information, it is impossible to determine the cause of that problem. Please have a look at the log files of Openfire to see if they contain a clue.