Needless to say, if you have encountered the CE-34878-0 when trying to play Call of Duty Modern Warfare & Warzone you are on PS4. The error code is specific to the console and can occur with any game. It has nothing to do with the game, but with your console configuration. The error indicates that the game has crashed, but nothing to worry about you can start it again. Under most circumstances, you can play the game again by a simple restart of your PS4. However, if the error code is persistent, we have a number of fix that you can try.
The first thing you must do is restart the console. Simply turn it off, let it rest for a while and restart it back again. If the error continues, you should ensure that the latest patch of Call of Duty Modern Warfare & Warzone is installed. You must also ensure that the PS4 is updated.
If the problem still occurs, the cache of the game might be corrupted, which is causing the game to crash. You should delete the cache so the PS4 can download the game files again. Once you have done the above, try launching the game and check if the Call of Duty Modern Warfare & Warzone Error Code CE-34878-0 on PS4 still occurs. If the error still persists, you would want to reinstall the entire game to fix the problem.
Have you made a change of hard drive recently? If yes, then reinstall the original hard drive that came with the console to fix the issue.
We hope these fixes have resolved the Error Code CE-34878-0. Here is a snapshot of all the fixes you can try.
- Restart the console
- Update Modern Warfare or Warzone to Latest Patch
- Update the PS4
- Clear Cache on PS4
- Reinstall the Game
- Install the Original Hard Drive