Unable to login

This morning none of our technicians appear to be able to log in.

We attempt to login but the login page redirects to a page with /j_security_check on the end.

The serverout.txt has the follwoing around user logins:

[11:00:13:976]|[02-21-2017]|[com.adventnet.authentication.internal.WebClientAuthenticationManager]|[WARNING]|[171]|: PAM Exception caught while validating in WebClientAuthenticationManager : null|

[11:00:13:976]|[02-21-2017]|[SYSOUT]|[INFO]|[171]|: [JBOSS] JBossSecurityMgrRealm: User: dave.hailwood is NOT authenticated|

[11:00:13:976]|[02-21-2017]|[SYSOUT]|[INFO]|[171]|: [JBOSS] JBossSecurityMgrRealm: End authenticate, principal=null|

[11:00:13:976]|[02-21-2017]|[com.adventnet.servicedesk.setup.util.SSOUtil]|[INFO]|[171]|: User Or Domain Is Empty inside SSOUtil|

[11:00:13:976]|[02-21-2017]|[com.adventnet.servicedesk.utils.ServiceDeskUtil]|[INFO]|[171]|: serverInfoFilePath is claling C:ManageEngineServiceDeskbin..serverdefaultconfServerInfo.properties|

[11:00:14:960]|[02-21-2017]|[SYSOUT]|[INFO]|[171]|: #####Login.jsp -----> loginError : true|

[11:00:14:960]|[02-21-2017]|[com.adventnet.servicedesk.setup.util.LDAPUtil]|[INFO]|[171]|: IsLDAPAuthentication Result : false|

Kind Regards

Dave Hailwood