That complete corner is ... no good.
The jack mount should be straight. it is not. There are tears in the camper skin above the jack mount and below the LPG compartement.
The passenger's side cabover is probably only hanging by the top beam.
You need to disassemble to assess the damage. Likely there is pretty bad rot there. The damage could also be the result of an accident. When you unload the camper, keep the cabover properly supported and keep out from underneath it until you are sure it will hold.
I feel sorry you had to have this experience. This will be much, much more work than you anticipate. It is not very difficult work, just a lot of it. Do you have a place where you can work on the camper? Under a roof?
ETA what is the damage on the passenger cabover front corner? Looks like it hit something? Are those scrape marks under the cabover window? That would explain...
ETA2: error corrected