Banned on mcc pc and I don’t know why?

Hey so I hit max season rank on mcc reach pc and beat the legendary campaign under 3 hours after a long time grinding my heart out into this game over 230 hours and decided I’ll take a break until something interesting comes out, then it did a new game mode CE type matchup so I thought I’ll hop back on finally and what do I see nothing but banned? Can anyone please help me out here

See my post here for help on that
https://www.halowaypoint.com/en-us/forums/84ad72a8b51847978545f685f651fc15/topics/the-official-halo-mcc-why-was-i-banned-thread/95de2d50-5e10-42db-9490-c24efbd2dc74/posts?page=83#post1648