Hello Dr Ayyoub
states are fully loaded with rubish data
and strange format: syntax
it is a moodle bug;
u can download latest quiz/locallib.php to fix the bug unless martin didnt fix the
bug......
anyways; i cleaned the data and u can regrade now; it may appears unless u upgrade the latest version
good luck
Quiz
When regrading stops: Can not find wrapped question
Dán digaštallan lea giddejuvvon, it don sáhte šat vástidit dasa.