You can't fix that, it's replacement time, once the pads snap of it's toast.
Search the part on eBay mate.
From that price it's not auto dimming & 8T 1st gen are dumbos mirror shape.
What usually happens is the connectors get timescale build up & corrosion & they get stuck & then when people try to remove they pull the pad of, but the trick is to put a finger & thumb at the bottom of the connector so you're holding the pads down whilst you're using the other hand to pull the connector of with some long nose pliers slowly wiggling side to side, then you dremel clean both of the mating connectors with a wire brush attachment, thus makes it good.