While starting Survive's Maxwell mission, an error box appears, but the mission seems to continue loading (as indicated by the two yellow bars). However after filling the two bars, the mission still won't start. It stays on the loading page, and the error box stays there, too. It says "File A3\Functions_f\Arrays\fnSortBy.sqf, line 131
_sortedArray set [count _sortedarray,I#I_selectedItem];
_sortedValues set [count...'
Error undefined variable in expression: _selecteditem
It is just the last message, I wasn't able to copy the others, which appear while the mission still loads. {F23993}