Forum:Game data deleted

Hello, Ive been playing ayakashi for a few weeks now and managed to get good cards. As usual, I was playing ayakashi again today. I left my phone running for a few minutes and when I came back and resumed my game, the was a window that popped up saying "Game data installation complete". I didn't know what it meant but I thought m game updated on its own? But when I checked my game again my previous progress data was gone.

I wonder if anyone has encountered the same problem before?