Sorry, a communication error occurred while trying to contact the remote authentication server

[N]

Hi everyone

We unsuddenly have the following error when trying to login in to JIRA (Jira Server 7.3.1 ): 

• Sorry, a communication error occurred while trying to contact the remote authentication server

Although  crowd works well. Authorization in Confluence workes. And we can't authorize to JIRA as local user too. We tried to reboot JIRA few times. Nothing changed.

atlassian-jira.log:

2021-01-20 09:59:01,079 JIRA-Bootstrap ERROR [c.a.s.core.lifecycle.DefaultLifecycleManager] LifecycleAware.onStart() failed for component with class 'com.atlassian.oauth.serviceprovider.internal.ExpiredSessionRemoverScheduler' from
plugin 'com.atlassian.oauth.serviceprovider'
java.lang.IllegalArgumentException: Job handler already registered: Service Provider Session Remover
at com.atlassian.scheduler.compat.clustered.ClusteredCompatibilityPluginScheduler.registerJobHandler(ClusteredCompatibilityPluginScheduler.java:80)
at com.atlassian.scheduler.compat.AutoDetectingCompatibilityPluginScheduler.registerJobHandler(AutoDetectingCompatibilityPluginScheduler.java:64)
at com.atlassian.oauth.serviceprovider.internal.ExpiredSessionRemoverScheduler.onStart(ExpiredSessionRemoverScheduler.java:35)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager$4.consume(DefaultLifecycleManager.java:277)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager$4.consume(DefaultLifecycleManager.java:274)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager.notifyLifecyleAware(DefaultLifecycleManager.java:303)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager.notifyOnStartIfStartedAndEnabled(DefaultLifecycleManager.java:273)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager.access$300(DefaultLifecycleManager.java:49)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager$3.evaluate(DefaultLifecycleManager.java:235)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager$3.evaluate(DefaultLifecycleManager.java:232)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager.notifyLifecycleAwares(DefaultLifecycleManager.java:258)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager.notifyStartableLifecycleAwares(DefaultLifecycleManager.java:231)
at com.atlassian.sal.core.lifecycle.DefaultLifecycleManager.onPluginEnabled(DefaultLifecycleManager.java:161)
... 2 filtered
at java.lang.reflect.Method.invoke(Method.java:498)
at com.atlassian.event.internal.SingleParameterMethodListenerInvoker.invoke(SingleParameterMethodListenerInvoker.java:36)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher$1$1.run(AsynchronousAbleEventDispatcher.java:48)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:299)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher.dispatch(AsynchronousAbleEventDispatcher.java:107)
at com.atlassian.event.internal.EventPublisherImpl.invokeListeners(EventPublisherImpl.java:160)
at com.atlassian.event.internal.EventPublisherImpl.publish(EventPublisherImpl.java:79)
at com.atlassian.plugin.event.impl.DefaultPluginEventManager.broadcast(DefaultPluginEventManager.java:73)
at com.atlassian.plugin.manager.DefaultPluginManager.broadcastIgnoreError(DefaultPluginManager.java:2122)
at com.atlassian.plugin.manager.DefaultPluginManager.onPluginRefresh(DefaultPluginManager.java:795)
... 3 filtered
at java.lang.reflect.Method.invoke(Method.java:498)

Please help us in resolving this.