Banned And I have no idea 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

Please don’t cross post topics thanks
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