Make a complete Issue report through Roll20's web form . They are moving to handle exactly this kind of thing through that system. Considering you didn't explain almost any details of your issue, what was done prior, or images, it shouldn't be a loss to make a full bug report directly to them, considering they aren't as responsive on the forums. Depending on if "Rollback" is a Plus feature or not, you might want to consider using it to turn the time back, but don't know how it interacts with module updates, if that was what you did.