Bought a used 65"? 12 drawer Cornwell box. A previous owner spilt soda on the drawer and the latch won't fall back down to hold the drawer shut. I took it apart to clean it but since only gravity pulls it down it helped a little but not much any amount of gunk interferes. Or it's slightly bent and I cant tell? My research show parts probably aren't available so either adding a spring to push it down but maybe I'm being too fancy?