Looking for servers..

So, for about a week ago i did a full format on my mac. When I try to get plex up and running again, i will not detect(?) my server, or I dont get the option to add a new one. When I use the plex media server on my mac, and log in from there i comes to a page where it wants me to set up a cloud server, and on the top left corner it says “Looking for servers…” So, how can I replace (?) the old one? How can i make the plex media server to forget the last one?

Also, when i right click on the plex media senter on my mac, and click preferences, I comes to a page where it sais "No soup for you!

The server you’re trying to access doesn’t want to let you in. Make sure you’re signed in as a user with access to this server."

Do i have to unsubscribe this email and make a new account with another mail?

@lasse.lovstad@gmail.com said:
Do i have to unsubscribe this email and make a new account with another mail?

No, you just have to make it so, that your server uses the same plex account as your web browser does.
This procedure should take care of that:
https://support.plex.tv/hc/en-us/articles/204281528-Why-am-I-locked-out-of-Server-Settings-and-how-do-I-get-in-