could Bitdefender prevent Saving on my wordpress site

In general I am quite satisfied with Bitdefender.

But I have the problem that it is impossible to do savings on my wordpress blog. It is made with Divi.

I have already checked out all possible issues with the hoster. There all is good.

Now I wondered if this might be a bitdefender related problem. May be I have to set up an exception rule somewhere? But I do not what and where.

Therefore, I would very much like your advice or ideas and thank you in advance.