What could be possibly wrong here?

[JustGabe]

I recently found this helpful tutorial: http://haxecoder.com/post.php?id=61 but when I try to load the game the IDE throws me these errors:

AL lib: (EE) alc_cleanup: 1 device not closed

Invalid operation (-)

Called from flixel.ui.FlxBar::setRange line 331

Called from HUD::update line 43

Called from flixel.group.FlxTypedGroup::update line 89

Called from PlayState::update line 116

Called from flixel.FlxState::tryUpdate line 155

Called from flixel.FlxGame::update line 700

Called from flixel.FlxGame::step line 648

Called from flixel.FlxGame::onEnterFrame line 493

Called from openfl._legacy.events.EventDispatcher::dispatchEvent line 98

Called from openfl._legacy.display.DisplayObject::__dispatchEvent line 182

Called from openfl._legacy.display.DisplayObject::__broadcast line 161

Called from openfl._legacy.display.DisplayObjectContainer::__broadcast line 286

Called from openfl._legacy.display.Stage::__render line 1103

Called from openfl._legacy.display.Stage::__checkRender line 351

Called from openfl._legacy.display.Stage::__pollTimers line 1084

Called from openfl._legacy.display.Stage::__doProcessStageEvent line 430

And I don't know what I could be doing wrong, EVERYTHING runs just fine as it should, except for the loading part.

TIA.

[Jeru Sanders]

What's on HUD line 43?

[SruloArt]

* Yeah, I've no idea where this FlxBar came from.