I got a ban 500 Days ago

[steam-76561198160431941 0]

Hey i rly dont know why i got banend can somebody help me

[Gobbokirk 546]

Nope, because you don't explain what kind of ban.
If it's a Game ban on your steam account, contact Battleye, (though very unlikely to have any effect after 500 days( if it's a server specific ban, contact the owners.