Enterprise vault Server goes hang and also I am not able to login in windows server with VSA account. Same time user also not able to access archived mail. So that we reboot the server (enterprise vault) after that it is working fine but we found above event ID.
Can you help me for this issue what was the cause behind this issue?
Without a dtrace log, it's really difficult to determine what could cause that error, However, if you are running Enterprise Vault 10, you can setup a backtrace and use that event ID 4224 to trigger the dtrace:
How to run Backtrace to help diagnose issues with Enterprise Vault
If you are running Enterprise Vault 9.0, you can setup a trigger in the dtrace:
How to run dtrace using triggers with Enterprise Vault (EV)
I hope this helps.