The game keeps crashing

Since yesterday, the game keeps crashing when I play the arena. In the middle of it, either when 1:20 sec or 30sec are left, the game would just crash, use my gauntlet but not give me any progress. I have lost 2 gauntlets like this which I have paid for with diamonds. It's not a big deal but it certainly is annoying, especially when I sit down to play this game in my relaxing time, and this is anything but relaxing. Life is already stressful as it is, please don't make it even worse with these bugs. Thank you!