

Sorry you're stuck but there's almost always a pretty easy fix! Do NOT try to start all over again, eg. uninstall Max's Pitch Package, etc. That can make things worse.
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post in the right category
INCLUDE AT LEAST ONE SCREENCAP IN YOUR POST TO SHOW THE PROBLEM!!!!!!!!
explain the problem clearly
I think that is due to a bug in the grader we had uploaded last Friday. We fixed it on Saturday morning but if you downloaded it between Friday afternoon and Saturday morning, that's the problem. Sorry. If you reinstall it now it should be fine.