Welcome to the forums. In case you haven't found your answer yet...we had our door fly off... as it is about 10 years older than yours, the construction and all might be different. But here is a link to my husband's thread on our Bambi trailer. He has two different sections on the door, the link below is the second one. you will have to go to the beginning and hunt for the door came off portion...
go to post #274 for bent door.
If you can, post some pictures of yours, it might help! I also recommend you replace all the rivets in the hinges and bracing that attach your door to the trailer. We had corrosion that was not visible...
Mrs. NorCal Bambi (traveling in S Tardis)