That the EV Charging product has sufficient power supply.
Check that the car doesn’t have a charging protocol following the ignition being “turned off”. For example, once the car has powered off there may be a period of waiting before the car will accept a charge.
IF YOUR HANDLE WON”T RELEASE FROM THE CAR
Unlock your car or charging port again, before removing the handle. (Even if your car is already unlocked). This should release the handle.