Yesterday I upgraded to v3.6.2 and just noticed today that I cannot edit current locations or create new ones. When I try I just get the below error page. Does anyone have any idea why this may be, or is there a way to roll back to the previous version?

Thanks in advance...

FastCGI Error
The FastCGI Handler was unable to process the request.

Error Details:

Error Number: 13 (0x8007000d).
Error Description: The data is invalid.

HTTP Error 500 - Server Error.
Internet Information Services (IIS)