Newly purchased server contains old content

[skillmaster19]

The server name is Dev Vinka

If you dont feel like reading, the server is chaos because of being reused.

I was really bored today, so I decided to log on to a bunch of UC servers. I logged onto one, and found one purchased 1 hour ago. the owner new almost nothing about how to make a server.

Anyways, it seems that the server has been "recycled" from a previous server and never cleared. Old GUI menus and HUD's replace the default ones. Swords dont work. Some old manager appears on the staff list in server options. For some reason, he cannot add me as an admin to fix these problems, and it looks like he is doing it right. He can't log on via External rc, only the one that you press f6 to open while in the client.
What it sounds like is the server needs to be restored to defaults.
Any help would be appreciated. also, the owner never bought a server before.