Help! One of my teachers gave a quiz in 3 of her classes and can't get to the attempts to see the grades. When she clicks on the attempts link, moodle give and HTTP 500 error. She gets this on all 3 classes. she copied the quiz from one hour to the other 2. I have no idea where to look to resolve this. Other teachers are successfully using the quiz module with no problems at all. Any help is appreciated!
version 2.3 on windows 2008 server