Please check ems.log file in C:\Program Files\CA\AccessControlServer\MessageQueue\tibco\log folder.
You may see the following errors.
Accepting connections on ssl://<host name>:7243.
Recovering state, please wait.
SEVERE ERROR: Error occured while processing Message record id=6114068 (create from wire) - Unable to reconstruct message: 42 - Invalid message
FATAL: The recovery process stopped while processing a 'Message' record (id=6114068), error: 42 - Invalid message. Check the section 'Problems on Startup' from chapter 'Running the EMS Server' in the User's Guide before attempting to restart the server
FATAL: Exception in startup, exiting.
In this case, the database files of Message Queuing server were broken.
So, you have to recreate the database files according to the following steps.
1: Please stop Jboss service.
2: Please check if "CA Message Queuing Server" service is stopped.
3: Please stop PIM service with "secons -s".
4: Please move the following files in C:\Program Files\CA\AccessControlServer\MessageQueue\tibco\cfgmgmt\ems\datastore folder.
5: Please start "CA Message Queuing Server" service.
6: Please start PIM service with "seosd -start".
7: Please start Jboss service.
If you try the above steps and you cannot start "CA Message Queuing Server" and login to SAM WebUI yet, it may be other problems.