$prev.chasecam(Access Granted);
$(Client) = 1;
Neither of these are valid syntax.
I have no idea what you're trying to do in the first one, but change the second one to $ChaseCam::isOn = 1;
And do the same thing to the second set of them
also do i need a server.cs in there or is client.cs just fine?
server.cs for a serverside add-on, client.cs for a clientside addon. This is a client-side addon, so just a client.cs