"you'll have to clear cache and hope it helps or reinstall the game and live with it, or there's a 3rd option - if possible play the PC version, as it's more stable and free of those crash issues
The reason behind it is that the game is developed with Windows in mind as the default platform, Android build exists simply because Godot Engine let's dev export the code as an .apk installer - hence "experimental" in the filename
Those issues are heavily device dependent - not all Android users experience said crashes, so it's hard to pinpoint an actual root cause"