Hi @mononox
thanks a lot for your help. At the end I’ve done it a little bit differently (based on help from my theme developer) and I think now it’s ok.
At the beginning, I wasn’t able to edit the wp-config.php file. I user wrong FTP client. That’s the reason why I had to use a different approach.
However, thanks a lot for your help, I really appreciate that.
Best Regards,
Jakub