Ban Restore is a game mechanic added in Update 17 (part 2), for the players that have been reset or banned (from Blox Fruits) without any reason.
The message gives the player 2 choices:[]
- To restore the data BEFORE the player got reset / banned.
- Keep the player's current save-file.
This only existed for update 17.2.
(this was found through "unethical ways"/exploits, and looking at the game's GUI files, was a leak along time ago, but no reports if it ever being used.)