Hello @sofy ,

thank you very much for your response. So, the problem has been identified, right? Could you possibly give an estimate of when we can expect an update? And should I keep the old WordPress version until then? Maybe you can give me some advice on this. Thank you very much.

@sofy : Thank you for taking the time to check directly on my site. I will wait for the update for this problem.

I would like to take this opportunity to leave this reflection on giving admin access or not to a support that asks for it... Tell yourself that if I had not left this access, this problem would perhaps not have been found (it was the case by the way...), moreover I do not really see the risk in doing this, but hey it is another subject and I am already off topic.