Diagnostic Console error: "The plug-in "" could not be uninstalled." (4229948)

When opening the Diagnostic Console you see the error:

"The plug-in "" could not be uninstalled. Would you like to remove it from the list of registered plug-ins so that it is not loaded next time the console starts?"

If you click Yes, you then see the below error:

Message:
The following internal error occurred:

Class not registered

Details:
Source: 004AD835 (Spotlight.000AC835)

Call stack:
  004AD835 (Spotlight.000AC835)
  004DFD32 (Spotlight.000DED32)
  004DF6FA (Spotlight.000DE6FA)
  0075B4E2 (Spotlight.0035A4E2)
  0075B027 (Spotlight.0035A027)
  0043F63A (Spotlight.0003E63A)
  0042AC4A (Spotlight.00029C4A)
  75FFFD72 (user32.0001ED72)
  75FFFE4A (user32.0001EE4A)
  7600018D (user32.0001F18D)
  75FF8B7C (user32.00017B7C)
  004904B0 (Spotlight.0008F4B0)
  0077BEE1 (Spotlight.0037AEE1)
  771DD2E9 (kernel32.0004C2E9)
  77891603 (ntdll.00040603)
  778915D6 (ntdll.000405D6)

If you click No, the Diagnostic Console opens as expected. If you do click yes, the only way to ever get it open again is to uninstall and reinstall, and then click No to the error.