What happened with uploading files?

[Donuts]

Hi Connie,
I have the same problem when I try to upload pictures (Error 500). I was told by the helpdesk that I need to add .htaccess with the text "SecFilterEngine Off" and especially not to put in root dir, but in the folder where the script runs! This enables mod_security for that particular folder and the containers placed scripts. But in which dir should I place it?

And is your option better as this one?

Greetings Tom.