Now that you have an idea what the causes are for the CE-34878-0 error, let’s see what you need to do exactly to fix it if it occurs when the console is running the Call Of Duty Black Ops Cold War.

Is Overwatch crashing on your PS4 and showing the CE-34878-0 error code? In this troubleshooting guide, we’ll explain to you the causes of this error and show you how to address this problem.

One PSN forum member ‘kickson123’ and PS4 owner has reported he has lost a massive 40 hours of gameplay due to the unexplained PlayStation 4 CE-34878-0 error, explaining in his post : ...