Air Fryer, Cosori (PL7)

2 to 3 years old Cosori “Dual Blaze” air fryer which heats above and below at the same time.
Works well, most of the time, but occasionally the touchscreen becomes unresponsive.
In good condition except for a patch at the bottom of the drawer, see photo.
Fully usable but we have now been given another air fryer, so this one is not needed.