Figured it out... It had damaged my table. I ran a repair on my "quiz-attempts" table and it fixed it, allowing me to get back in and take exams. It was weird because I could view all information and fields. Normally they get corrupt and show no data or some other form of damage. Perhaps it was in my cached away table causing the issue.
either way, thanks, it's working again. I think it's time for more memory in my server!
Josh Jones