Explanation
What this error means
CE-34878-0 is the PS4’s catch-all “an error occurred with the game/application” message. The system shut a title down because it hit a fault it couldn’t recover from. It’s deliberately generic: a buggy patch, corrupted save or install, an overheating console, or modified hardware can all surface here, which is why it’s the single most-seen PS4 error.
Official reference: Sony support page for CE-34878-0
Diagnosis
Most likely causes
| Cause | How likely | Fixable at home? |
|---|---|---|
| A bug in the game or its latest patch | Very likely | Yes — update or reinstall |
| Corrupted game data or save file | Likely | Yes — rebuild / reinstall |
| Console overheating or dusty vents | Possible | Yes — cool and clean it |
| Outdated system software | Possible | Yes — update the PS4 |
Repair
How to fix it
Ordered easiest-first. Try the next step only if the error comes back.
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Update the game and the system
Highlight the game, press Options > Check for Update, then Settings > System Software Update. Most CE-34878-0 cases are a known bug already patched.
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Close the application and restart
Press the PS button, highlight the game, press Options > Close Application, then restart the PS4 fully from Power > Restart PS4 (not Rest Mode).
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Give the console room to breathe
If the crash follows long sessions, the PS4 may be thermal-throttling. Move it to open air, clear the vents of dust, and avoid enclosed cabinets.
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Rebuild the database in Safe Mode
Power off fully, hold the power button to the second beep, connect the controller by USB, and choose “Rebuild Database”. This reindexes the drive without deleting games or saves.
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Delete and reinstall the game
If only one title crashes, delete it (Options > Delete) and reinstall. Saves live separately and are not removed.
⚠ In Safe Mode, do not select “Initialize PS4” unless you intend to erase everything — read each option before confirming.
Escalation
When it's not your fault
Signs the problem is on Sony's side — or in the hardware — rather than anything you can change:
- The crash began right after a specific game update — that points at the patch, not your console.
- Other players report the exact same crash spot on forums or the game’s status feed.
- It only happens in one title while everything else runs fine.
Questions
FAQ
Is CE-34878-0 serious?
Usually not. It’s a generic crash report, and the large majority trace to a game bug or corrupted data — both fixable at home without losing saves.
Will rebuilding the database delete my games?
No. Rebuild Database reindexes storage and keeps games and saves. Only “Initialize PS4” erases data, and this error doesn’t require it.
Why does it happen in just one game?
That almost always means the title or its latest patch is the culprit. Reinstall it, check for a newer update, and report the crash to the developer if it persists.