If you want to export a map then:
1.Open up Feralheart
2.Open up map maker
3.Open your map up
4.Export it
5.Go to your Feralheart folder.
6.Open up exports folder.
7.Find your map files
8.Give the files to your pack (upload it into mediafire or just send those somehow to them)
9.Check your particles folder (Fearlheart>media>particles) delete all the files in there that have _0 or _1 (they make your game crash after u export a map)
10.Check also sky folder and delete all the files that have _0 or _1 in their end.