So I decided to take apart my keystone xr308 camera so I could fix the shutter and viewfinder. The shutter and viewfinder were easy fixes, though I am having trouble reassembling the film advance. When I try and reassemble it, the advance gear does not turn. Here is a gif to show the problem. https://imgur.com/a/l4wiqm0 Any advice or resources on repairing 110 cameras would be helpful. Thanks.