[Colecovision Controller works fine except joystick]

I got this old Colecovision from Creig’s list which is pretty dirt,  controlle is fine, everything works perfect as it should except the joystick which only works if I push it to the right SOMETIMES if I’m playing a game and push the controller to the left hard enough it might make my character move slightly to the left, the other directions don’t work at all 

 

Here’s what the inside looks like

[How to remove scratches on the reflective part of the 7800]

 

Same problem with my7800 - what happend with this poor systems?

I got this and a bunch of controllers for 7 dollars on craigslist so I'm not 100% sure what happened to it

[How to remove scratches on the reflective part of the 7800]

Do I just leave it on there?

[How to remove scratches on the reflective part of the 7800]

I got this Atari 7800 with a lot of controllers for under $10 and the console has a lot of scratches on the reflective part. I wanna know if there's any way to remove those scratches