Hello @Leonid S !

"smth"? Do you mean "something"?

Web server is using php8.1-fpm, I also tried with php8.0-fpm but the warrnings/errors are the same.

Also the Cron is running as php8.1-fpm.

I might use the solution to hide/dissable warnings but I would be happier if there were not so many warnings - they are teling us that something is not as it should be.....