If you were previously banned for client modifications and had your ban lifted today. Client repair and removing those restricted mods is not enough to get cleared from the anti-cheat software. You must delete the game and re download a fresh installation of the game in order to be clean from the check list. Luckily, they've implemented a warning system now so you won't get instantly permanently banned for using a teleport book organizer mod, just a warning letting you know you're equally punishable as someone teleporting to Freedich with 23 packs on his merchant ship.
-Just a friendly reminder
-Just a friendly reminder