There's already a command in there.
Does the one you mentioned replace that one or should I just add it?
No, it should be fine.
When I add it, I get a 500 server error when I try to access Studio.
Thanks for checking my server, LeonidS. So far we know, that I have to talk to my server host, since I run UNA on a shared virtual server environment, that might prevent modules from functioning as expected.