i opened my gate this morning worked like a charm tried this afternoon NOTHING ,stuck solid.the key lock mechanism is lose so i jump in the back ripoff the inside plastic and try to unlock this way but the bar wont move.i try putting pressure on the door while pulling ,nothing.went from good to #$%@ nvery quick. any ideas that i have'nt read? its a 93 with the push button release in the same spot as the key lock(no handle)