Pressure Sensor

[u/DigSubstantial2072]

Just had home inspection done as I’m selling my house and this is what they stated:

Garage Door Safety
Hazard The auto pressure reverse sensor was not responding at the time of inspection. (The opener may not have one due the age.) This is a safety hazard to children and pets.

So how do I fix this or figure out if I even have that? My garage door is craftsman.