Here's another - if it were me, I'd backup the database and then re-install the includes folder from a new zip file over top what you have now. Your overrides would still be there, but anything that got corrupted would be fixed.
Doesn't look like you have much to lose.
Then I'd delete all the non-template override files.
Your cart is, in fact showing 'New Products' in place of Product Listing. I don't think you could do that with just template changes.




