Fixed a crash cause by wrong default language code.
Fixed a crash cause by wrong default language code.

fhfuih/MCEdit-Unified,Khroki/MCEdit-Unified,fhfuih/MCEdit-Unified,gpmidi/MCEdit-Unified,skinny121/MCEdit-TallWorlds,skinny121/MCEdit-TallWorlds,Khroki/MCEdit-Unified,OniOniOn-/MCEdit-Unified,fhfuih/MCEdit-Unified,skinny121/MCEdit-TallWorlds,OniOniOn-/MCEdit-Unified,DragonQuiz/MCEdit-Unified,gpmidi/MCEdit-Unified,DragonQuiz/MCEdit-Unified,OniOniOn-/MCEdit-Unified,DragonQuiz/MCEdit-Unified,Khroki/MCEdit-Unified,gpmidi/MCEdit-Unified