We are aware that crashing is an issue and we are working on a fix. However, there are possibly several types of crashing that we would like to identify. One aspect of crashing that we're currently looking at is whether it is caused by certain booster combinations. It would be great if you could help us in our efforts to identify these. If you can send a video or describe what were the last actions made that led to the game crashing, it will greatly aid in our checks and help us find the root cause of the problem. You can reach us by clicking the "Chat" icon in the Help Center of the game.