When you try to launch Call of Duty: Warzone, but the game is not open or runs from the battle.net client. Generally, the error message when Warzone is not launching or running from battle.net client will say ‘An error has occurred while launching the game. Please check for updates or scan and repair to fix
Continue readingFix BLZBNTBNA00000012 Error Warzone Not Launching or Running From Battle.net Client