Zencart Fix Needed

I need experienced developer to go through my existing zencart site and fix the issues with code. Right now we are not able to edit all of the products in our store. The main issue is with our existing products we are not able to edit them and add/edit new pictures to those products but when we add a new product picture added to it successfully. I want u to fix this issue and any other issues u find with code. ## Deliverables The website is live and have good traffic. So don't bid unless your are a zencart expert and sure u can do this job.