Identity Manager service not working

Hello ,

Few of our identity Manager services are not working properly i.e  whenever we try to restart the services ,the service gets stuck in 'stopping' state and eventually the process has to be killed. 

On starting the service , we can see below warning in the jobservice log file

'Constrain access to encrypted configuration properties on the service account ' and no other error message can be seen in th log file .

Can anyone suggest what can be the issue.

Thanks