RGL ERROR Number of passages exceeds 16

[Jerre]

i recently tried to make a new map on warband and i copied and pasted the code from the terain into the scenes files and deleted the old version from the sceneObj folder i am trying to create a map using multiplayer maps and when ever i click on multiplayer my game crashes and comes up with "RGL ERROR Number of passages exceeds 16" luckilyi made a back up folder but pls help thanks