IF you see physical evidence the motor spur gear tracks are all chewed up then you are looking at removing the H columns for repair...
You have the inverted style Schwintek in wall slide system...
If you stand outside and look at the left side tracks up at the wall you most likely have sheared the aluminum rivet on top and bottom guide blocks.. this is referred to as the "Fixed Side" and the right side is the "Float Side"
I would also bet the guide block shoes on upper and lower guide blocks are damaged..
This link will help you understand the repair that is gonna be needed to fix your slide system
** The repair is within the abilities of an RV owner provided they have the mechanical skill sets to do the work