my map can't load!!

[blackje123]

im making a map whit allot of details in it! its a island in the ocean that i ganna call 'berk'. its not exactly berk from how to train your dragon but i don't know a other name! there is a place were wolves can rest and a cave for the alpa's and there is a place for lions to chil an relax! ofcourse there are dragons and a dragon den in the mountain...but i can't load it anymore!!!!!!!!! and i was so far  ! it said he can't load the terrain thing... don't know any about it! a few min before this it wil load! can somebody help me!? 

[Forests]

You must be missing a terrain of somewhat as obvious. What I would do:
Find all terrains, and see i every single texture was there first,
If so, check if the height map is there, if you are using a heightmap,
Check for the mask.

If this doesn't work, posting a screenshot of the problem would help us all distinguish the problem.

[Slydragon99]

Check if the terrain is actually in the terrains folder, and if it is the correct file type

[blackje123]

but how i must do this? i can't load it anymore...