The bug of Ultimate Block Puzzle Solver in the Android 4.4

To every Android Kitkat 4.4 user out there, here I would like to convey my apology on the app incompatibility issue of my masterpiece Ultimate Block Puzzle Solver. 

Currently, when the 'go' button is tapped, the app may crash, without providing any useful result.

Hence, this particular post is created in order to assure you that the efforts to amend it are on the way. I will update this as soon as the issue is fixed.

Meanwhile, you may use the Android device of a lower version, if you are desperately going to solve a puzzle, OR send your puzzle here so that I could help solve it.