Dear community,
I have a problem with importing the quiz activity from previous course though It was working before , but suddenly it is no longer working when I import the course it keeps loading and then through 502 error , and I couldn't find anything in the logs, so I was tracking the transaction to the database in this issue also doesn't show anything , it only shows:
SELECT *
FROM lms_question_hints
WHERE questionid = '103233'
note that we didn't upgrade our system and we didn't deploy any new feature!