Congrats on you first place on the leaderboard! I must think about level editor :) Are you looking for any other improvements?
Try to remove internal app storage in your phone. Go to Settings > Applications > fing application " Square Dash Cactus" > clear internal storage. This should fix the problem but this is a workaround and in the same time it will remove all your progress and points in the game. You will have to start all levels from scratch.