The grader gives me 0 points, so I deleted my Lab 1A work and restore it by following instructions from support. Then reflash grader page, but it still show me 0 points. Unfortunately Some parts of my work have been lost after restore it.
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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