Game won't stay on

My farm blinks off after I do one or two actions. Sometimes when I turn it back on those actions won't stay and I have to repeat them. Sometimes I lose items like when I use a pick in the mine and find something it never shows up in the barn. I have deleted the game and reloaded it several hours later. Still blinks. This does not happen with other TeamLava games.

Yes it does ..it always did that on my iPad first generation ..on my itouch 4 it always did that on in the mine ..now with lastsst update I can no longer sell on the side market anything I have .