Second Plex Server unable to register

I have an existing plex server at home and I am trying to setup the one with seedbox. But it automatically logs me in.

I looked up online and they recommend logging off my existing plex server and reinstalled (uninstall/reinstalled) plex on the seedbox. I did this and after logging in it shows up with a blank library and no server (Except a shared one) shows up.

Could it be cached on the seedbox, if so how do I fix it?

Thanks for any help you can provide.