If you have mistyped your password a few times in a short timespan, it might be temporary, in that case you should wait 60 minutes and try again.
However, if you still appear to be banned, you should create a ban appeal.
BEFORE creating your appeal please read: https://forum.elysium-project.org/topic/38068-ban-appeal-information-read-before-posting/
Create your ban appeal here: https://forum.elysium-project.org/forum/351-ban-appeals/