Hi KS ,
To add to what Denis had advices.
First Identify what resource is restarting or unable to start.
Click on the endpoint server and see the process which is not starting , Mostly the issue should be with the "FileReader".
To see the sub processes you need to enable the "Advance process control" :
Go to System > Settings > General > Config > check the "Advance Process Control"(Save).
Now click on the endpoint server and check the process not starting.
Also, before trying anything restart the Vontu Monitor Controllar Service on the enforce , The issue might be with communication.