Dev Error 6039 is a common error that can occur when playing Warzone on PlayStation 4. This error can be caused by a number of factors, including incorrect input or data, but is most commonly caused by players not being able to connect to the game. If you experience this error, please try to connect to the game using your PlayStation 4’s network connection and see if there are any specific changes that have been made in Warzone that may be causing the error. If you still cannot connect, please contact Sony Interactive Entertainment America for assistance.