Exception: Null Object Reference

[bertt640]

Called from options.VisualsUISubState.changeSelection (options/VisualsUISubState.hx line 305)
Called from options.BaseOptionsMenu.update (options/BaseOptionsMenu.hx line 118)
Called from flixel.FlxState.tryUpdate (flixel/FlxState.hx line 239)
Called from flixel.FlxState.tryUpdate (flixel/FlxState.hx line 248)
Called from flixel.FlxGame.update (flixel/FlxGame.hx line 750)
Called from flixel.FlxGame.step (flixel/FlxGame.hx line 680)
Called from flixel.FlxGame.onEnterFrame (flixel/FlxGame.hx line 559)
Called from openfl.events.EventDispatcher.__dispatchEvent (openfl/events/EventDispatcher.hx line 426)
Called from openfl.display.DisplayObject.__dispatch (openfl/display/DisplayObject.hx line 1398)

Version: 0.14.2 (70e88e6091e1519e00f67d858eb4846e0f68b881)