I bought the VanUp Promaster Razor Rack, with two boxes. However, after installing it, I noticed that the top lock had a lot of weight and force, making it hard to open the Promaster doors. Eventually, the doors became impossible to open once the boxes were full. As a result, I had to remove the Razor Racks and boxes. I am looking for a solution for this issue, Does anyone know of a solution to fix the hinges on the doors or maybe add secondary hinges to improve its functionality?