Unfortunate move- Giving up on adventure

By carpediem1988, in The Lord of the Rings: Journeys in Middle-earth

Hi guys, it happend to me and my wife playing this game that we started playing 5th campaign and after couple of attacks (where you basically just attack elite orc- it's the main objective) I realized I am missing one success card on Gimli. I just realized something was wrong with my success rate giving small damage taking quite high damage. Since game was previously saved and I thought that save would be the ONLY save I pressed 'give up on adventure. I noticed this was wrong decision since game gave us exp. point. I closed the app, opened it again and our whole 5th campain is gone without u having an idea what did / could happen etc. Do you generally think there is a way of going back to that campain for us or is it completely lost? :( I otherwise will start the game over, I don't want to skip any part of the story.. Any help very much appreciated since you can imagine hours already spent with the game. Thx.

Nothing I can think of to fix that sadly no :(