If you have any suspicious activity on your player account, your player profile can be blocked.
If your profile is blocked, you can contact technical support to clarify the situation, specifying the data of your blocked profile: ID, nickname, level.
The player profile can be blocked by the anti-cheat system in connection with suspicious activity in the game, or in other situations specified in the rules of the game.
More information on the blocking of the game profile, you can find in the section "violations and penalties".