Thank you Alex for your answer.
Yes, i’m logging in as an admin.
Maybe I expressed myself in the wrong way..the icon of Quizz tool disappeared from sidebar on the left of the administration panel. I saw in this forum that somebody had the same problem 7 months ago.
I have tried the solutions you proposed, but nothing happened.
I tried to go to the page https://www.YOURSITE.com/wp-admin/admin.php?page=ai-quiz-home but i have an error message kind of “I have no sufficient right to go there”.
Actually, the problem happened after I wrote a long text as an explanation for the answer in the “text for correct answer”… Maybe it has a thing to do with the problem?..But now i cannot delete anything..
S.
