ArgumentError: Side level with id = 1 does not exist
	at model.proxy.userProgress::UserProgressProxy/isSideLevelCompleted()
	at model.vo.missions::CompleteSideLevelsMission/progress()
	at Function/checkMission()
	at Vector$object/_filter()
	at Vector$object/http://adobe.com/AS3/2006/builtin::filter()
	at model.proxy.missions::MissionsProxy/removeCompletedMission()
	at model.proxy.missions::MissionsProxy/levelCompleted()
	at UpdateMissionsCommand/execute()
	at org.puremvc.as3.multicore.patterns.command::AsyncMacroCommand/nextCommand()
	at org.puremvc.as3.multicore.patterns.command::AsyncMacroCommand/nextCommand()
	at org.puremvc.as3.multicore.patterns.command::AsyncCommand/commandComplete()
	at CheckLevelGateForTutorial/execute()
	at org.puremvc.as3.multicore.patterns.command::AsyncMacroCommand/nextCommand()
	at org.puremvc.as3.multicore.patterns.command::AsyncCommand/commandComplete()
	at controller.command.network::GameEndCommand/onResponse()
	at controller.command.network::BaseAsyncNetworkCommand/callback()
	at Function/http://adobe.com/AS3/2006/builtin::call()
	at proxy::HttpProxy/packHandler()
	at flash.events::EventDispatcher/dispatchEventFunction()
	at flash.events::EventDispatcher/dispatchEvent()
	at flash.net::URLLoader/onComplete()