Garage Door problems

[Belmont Resident]

Garage doors have a sensor that tells them when to stop at both the up and down position.
Sounds like the sensor has moved and needs to be readjusted, the wire going to it might have come loose or the circuit board that controls this function is not working.
There are several garage door places around, having not used one I don’t know who is good bad or indifferent. I’ve always installed and adjusted my own.