hi
i payed for the plex pass and downloaded the media server app for my pc , i installed the app and after logging in it tells me to download the media server app which is the same file i keep downloading
Have you followed this? At which step does it stop working for you? On which platform is this? https://support.plex.tv/hc/en-us/articles/200264746-Quick-Start-Step-by-Step-Guides
See also other help articles such as
https://support.plex.tv/hc/en-us/articles/204604227-Why-can-t-the-Plex-app-find-or-connect-to-my-Plex-Media-Server-