What's wrong with the game?

I've been playing this game for 10,000 levels now. I was playing normally, playing royale and winning 50+ levels in a row. Then I pressed to play on one side and the game crashed for some unknown reason. I went back in and everything was gone. My winning streak, my royale, and my first-place finishes in each round were all gone. It was like I was kicked off the game and forced to play offline, even though my internet was working fine. I'm so confused. This has happened before, not just this time. There was a period of time when I wasn't playing and I deleted the game. When I came back to download it again, all of my items were gone. What is this? I've spent a lot of money on this game. Is this for aliens to play?