While playing Valhelsia 7 beta 2, on entering the nether, after a few seconds my game crashed. After further investigation i found out that the mod “Gardens of the Dead” Version 5.0.0 caused the game/server shutdown.
To fix it, remove the mod and in the world folder remove the DIM-1 folder. BEWARE that if you delete the DIM-1 folder, the whole nether world gets wiped!
