Hey @Janush212
Have a nice day , please check email and password. If you still can't login , reset your password (on game entry screen , the bottom part will this write '' No worries , click here to reset your password.'' you can resset your password by clicking. Same time you can reset your password by logging into TruckersMp. Check your email and after you have saved your new password , you can login the game.
Best & Kind Regards.
-AV-