Canon EF 24-105mm F4 L IS Lens Not Working

Serial number: 3520585

Lens only. No caps.

Cosmetic Condition: 8/10
It shows signs of use.

Optics: 8.5/10
The lens has several small scratches.

Mechanics: Needs repairs.
There appears to be damage from impact in between the rear mount and the zoom ring. Zoom and focus rings move freely but autofocus doesn’t work and most times the lens is not recognized when mounted on camera not even in manual focus: can’t take shots.