CoreELEC fail to fetch addon repository

While I’m trying to fetch Kodi repository on my coreelec device I got a Faild to connect error. And when I tried to open the URL from the addon xml config file, which is https://addons.coreelec.org/nexus it redirected to https://ftp.halifax.rwth-aachen.de/xbmc/addons/nexus/ and returned 403 Forbidden. https://addons.coreelec.org/matrix returns the same 403 error, but https://addons.coreelec.org/leia works just fine.

I’m not sure if there’s something wrong with my operation, help plz

p.s. My coreelec is fresh installed