Maybe this can help you, If you have uBlock Origin, disable it for your website.
I have this problem because uBlock Origin considers the area to be an advertisement.
Hi,
My problems are solved (for PHP errors & repeated actions).
Thanks to the ticket opened by Jim. Support told me not to reproduce the problems. He suspected a possible problem with the server configuration, in particular the PHP modules. With this lead, I was able to investigate enabled modules to disable unnecessary modules that the IPS software does not use. I didn't think a PHP module could be responsible. 😵
If anyone has a similar problem, here are my active PHP modules.
Everything is working !