I too am receiving a similar message. I’m using inmotionhosting and not sure what I need to do. Here’s the complete error code I get from the sheets.
Exception: Request failed for http://www.thelaserprofessionals.com returned code 404. Truncated server response: {“code”:”rest_no_route”,”message”:”No route was found matching the URL and request method.”,”data”:{“status”:404}} (use muteHttpExceptions option to examine full response)