by Hosein Naseri.
I truncated the table as you suggested. However sadly after some minutes, It got itself populated again.
On the other hand you told me about backup location, However I don't have automatic backup at all. And I never attempted to manually backup my data from within moodle. So at this point, I really am confused about the problem.
Do you have any other suggestion?
By the way can you tell me what does that itemid column stands for? All itemids are set to 297. maybe that would give me some clues.