First, are the stabilizers simply deployed (not forcing the trailer level).
If I'm not mistaken, the striker plate may be loosened and moved outwards.
Be mindful that this will reduce the pressure on e door gasket and allow wind and or rain in. Find a good balance.
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!