Board Thread:Questions and Answers/@comment-37.139.2.93-20160705080600/@comment-25669516-20161026121547

JB to KK should not give any error O_o

You have not hacked the game, have you? Modified list.xml or user.xml can give these errors. Also make sure that the game you are trying to restore the data to (the KK one) is the same version as your backup from the jellybean device.

Since you have already sold the older tablet you won't be able to create flashable zip. Have you tried to manually copy the entire data/data/com.nekki.shadowfight folder to the root directory of your tablet and then opening the game instead of using Titanium Backup?