On Wednesday, June 7, 6:30 UTC, maintenance will begin on the Caliber servers. The game will be unavailable.
Since February 4, 2021, Caliber is using an automatic player ban system. If you think that in your case the ban was applied incorrectly, you can make an appeal:
In an upcoming update we'll add Player ID display to the game client. At present, it can be found in the logs by following the instructions below.