Power issues when push fire button

Sounds possibly like a drop in power.
A few things to check:
1. Confirm that you actually have power to the machine and not getting power only from USB
2. This could be from a bad power supply. Check proper voltage from the supply. It could also be failing at load
3. Make sure you’re getting consistent reliable power from the outlet
It’s also possible the controller is bad or something else but I’d suggest checking something related to power first.