Can't access any gamemode/banned?!

I can't access any game mode and if I click the red triangle it says I'm banned, although I never received a warning, is there anyone else who has this problem too?! Edit: This happened after the maintenance/during it

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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