The problem is that the gc code is not added to the checker. The system does not which cache it is. You might have noticed that the namne is also missing
The CO have just added it to the path of the checker.
If the id exist the gccode can be anything in the url. If there is not id code this url should work.
Contact the "Tagged by:" on the checker page. there is an link with an envelope and as him/her to add the gc code.
only the tagger and script owner can change it