This seems to be a voltage problem, most vapes have voltage protection (this is why u see some cheap vapes explode as they don't limit the wattage and draw more power than they can handle) so say if your battery is letting out low voltage the voltage protection won't let it go over what it can handle I would get a new battery.
Damaging a battery is very easy and the most common can be: leaving a battery on charge over night and letting a battery fully drain.
I'm not an expert though
-Welcome to ECF