So uhm, my phone does not have a video recorder and the suggested apps on playstore for that is not usable, but I isolated where it crash.
In later map stages, there is normally an exploding item in the environment, or a falling trap, or someother booby trap.
If the user and enemies get hit by these traps while the mod have been turned on once in the session, then the game will crash.
I know it sounds weird and not really probable, but it is what happened.
I have tried going to map with stats multiplied, turn off before getting to the trap area, still does not work.
Area for testing: 3-4,3-5 or 3-6 should be ideal.
Some other stages would be 6-3,6-4, 6-5 and so on. Hence, while the video preview you gave showed the mod working, it is because those area are not booby trapped.
Once I find a working video recorder, I will try record the screen and upload here if you still need proof.