Add explicit error message for fetching counters without developer mode
Add explicit error message for fetching counters without developer mode

* Now that we can report proper error messages, also return more information and
  don't use a separate message box.

Zorro666/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,Zorro666/renderdoc