SASL authentication failed

Hi

Presently i am using spark 2.5.8 and openfire 3.6.3 , Actuvally i trying to login [ XXX ]server using spark …but when i trying to login i got blow exception:

WARNING: Exception in Login:
SASL authentication failed:
at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentica
tion.java:327)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:438)
at org.jivesoftware.LoginDialog$LoginPanel.login(LoginDialog.java:861)
at org.jivesoftware.LoginDialog$LoginPanel.access$400(LoginDialog.java:2
00)
at org.jivesoftware.LoginDialog$LoginPanel$1.construct(LoginDialog.java:
604)
at org.jivesoftware.spark.util.SwingWorker$2.run(SwingWorker.java:131)
at java.lang.Thread.run(Unknown Source).

Thanks,

Subbrao