I would send a private forum message to Andy (strumslinger) and explain it. You can have the fixed one ready to go and published on your account so if he does switch it out he can do it in a few moments.
I hope it works out!
We did have this happen before with the Lands of Mirent Tusk campaign
As of the March 21 patch we cannot accept foundry quests. Please fix this so we can get the chance to say farewell to thousands and thousands of hours of Authors' work before April 11. (View Post)