Hi, has anyone had problems with the hinges on the boot which lifts up and becoming detached. We have had to put another hinge on the other side so boot holds up but the original one which was repaired has come loose again, we have glued it, plugged it and screwed it back in, large plugs and screws but has come out again. Glue nor plugs and screws are holding in. Very heavy to hold up, has anyone any ideas how we can solve this. The second on is also coming loose. Van 4 years old.