Issues Following Application Server Restore From Backup

Hi All,

We have a CRM 2015 on premises Application server and a seperate SQL server.

Following the 0.2 update Friday the file system on the Apps server became corrupted so as a last resort we restored the server from a daily backup.

The SQL databases were backed up and all seem fine  but the Apps server is now giving me the error:

The requested record was not found or you do not have sufficient permissions to view it.  when trying to connect.

If I connect to the SQL server and run the deployment manager I get the error message:

MMC has detected an error in a snap-in and will unload it.

Any ideas where I should start to troubleshoot this would be much appreciated.

Thanks

Wayne