How to resolve Error: unspecified Error -ct-sensorapp.1186 not responding in IPS.

How to resolve Error: unspecified Error -ct-sensorapp.1186 not responding in IPS.

I was trying edit event action in IPS via IME when trying to save configuration, was getting error "unspecified Error -ct-sensorapp.1186 not responding" While login via SSH and configuring IPS was fine. I tried some trick but did not resolve the issue at the end I realised that sensor app is not started  and Reload of sensor worked fine.

Cause: ct-sensorapp.1186 was not responding.

Solution: Reload of IPS worked fine.