Hello ImG-yVasa,
For any issues related to permanent bans, we ask players to contact us through our support channels where we can verify your account and give more information about your ban as we are unable to discuss this over forums.
If you received a temporary ban because your game crashed, we are unable to lift this as we do not have the ability.
What we can do is offer connectivity troubleshooting, to strengthen your connection to our servers here, to prevent this from happening to you again -
https://ubi.li/YPwnl