Last weekend I lost all my boosters on my kindle. I reasked the question hoping to recover. I kid you not, the game opened and once again, I lost everything but strangely not my mail. I keep getting an error message that I am " missing the Amazon app store" which is not true. This is not happening on my android tablet just my kindle where I play the most. I have not updated or reloaded this game. Just trying to play like I normally do. This time I only lost like 20 boosters, lost hundreds last weekend. I am playing high levels like 2105, is anyone else on kindle having same problem ?