Hoping someone here can advise.

In the middle of the night, my Rust server restarted manually. Following restart, none of the plugins worked, with the console error:
Error while compiling: compiler version disconnected

I have since removed all plugins, uninstalled Oxide and attempted to reinstall via my server control panel, now with the following error: 
Error - Access to the path '...\mono-2.0.dll' is denied.

Server support have said that this is an oxide/dev problem and not on their end. Are you able to point me in the right direction?

Thanks, Kay