The problem was solved, I deactivated and uninstalled it and everything I see that it is ok. Thank you very much for your help

I understand, with that plugin from the host I installed WordPress and possibly from there is the problem, I will reinstall WordPress in the classic version, and I hope I don’t have the problem again

That’s it, I sent in an email the login credentials for WP admin, and cPanel . I received an email now, it’s probably something automatic, do I have to communicate the license code?

https://www.romarg.ro , The EntryPlus variant, for starters

unfortunately the hosts at the support are a bit stupid from what I notice, if I understand correctly, they have to go in modsecurity (which should have appeared in CPANEL), and modify those 2 lines, right?

Hi,

They answered my ticket, I gave them the picture you sent me, and they told me : ” Hello

Please tell us what steps we need to follow to see that error. Include your login credentials if necessary.

We remain at your disposal for any other questions. “

Now I opened a ticket to the host, for adding the lines in security mode, unfortunately I don’t have access. I asked them to add the 2 lines

Unfortunately adding lines in .htaccess was not useful either, you can’t provide support if I give you the login data?