Error " The process cannot access the file because it is being used by another process"

User is getting following error when he is trying to access
the SELECTServer from START->Bentley->SELECTServer Administrative site.

“Error- Site Off-line” My SQL Error was: Unknown host access
Denied”

When we check in IIS the Website was stopped and when we try to start the Website we get the following error:

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