Plex media server

Server Version#:4.160.0
Player Version#:

I am using media server on my windows 11 pc and now is not working anymore. I tried to download again the installation file but your page is unavailable . Also the page of contact is unavailable. My contract is active, paid and I do not know what to do

Download page seems to be working fine for me. Does the direct link work for you?
https://www.plex.tv/media-server-downloads/?cat=computer&plat=windows

Ho is your server not working any more?
Is the app no longer running, failing to connect, giving you error messages when trying to navigate libraries / streaming media, or something else?