Cant Start/No Option to Start GroupWise MTA Agent

Our GroupWise Server froze and required a forced restart during backup.

Once back up the Post Office Agent refused to start. Eventually managed to get it started by recreating POA.
Now only internal emails are working, and one of the MTA agents will not start. It says it is running on the server itself, but if you go to the admin console it says on the overview its down and if you got to start the agent it is not there!

It simply has status: - then nothing where the usual start/stop agent button is.

Would appreciate any help with this as I think this needs to be resolved before external emails can be restored.