🎮 Game Error Codes What it means & how to fix it

The Sims 4 Error Codes

The Sims 4's error codes are almost all about mods, custom content, or saving. Codes 102, 123, 125, 127, 129 and 131 point at a script mod or CC problem, 110 shows up after a game update from outdated mods, and Error 0 is a save failure. The fix pattern is the same: isolate the bad mod, repair the game, or reset your user folder. Here's what each common error means and the fastest fix.

Error codes

102 / 123 / 125 / 127 / 129 / 131 A script-mod or custom-content conflict

Cause: An issue with the game's script — usually a script mod or incompatible custom content (e.g. CC beds or children's drawings) causing the fault.

Fix:
  1. Remove large overhaul/script mods from your Mods folder, launch, then add them back one at a time to find the culprit.
  2. Update or delete the incompatible CC (beds, drawings) flagged in the error.
  3. Repair the game (right-click The Sims 4 -> Repair) after cleaning mods.
110 Outdated mods after a game update

Cause: A patch made your installed mods incompatible, and the game errors when loading them.

Fix:
  1. Update all your mods to versions that match the current patch.
  2. Temporarily move the Mods folder out and launch to confirm mods are the cause.
  3. Re-enable mods one at a time, updating any that trigger the error.
0 (save error) The game couldn't save your household/lot

Cause: A corrupted save, a full/locked user folder, or a mod interfering with saving.

Fix:
  1. Use 'Save As' with a new save name instead of overwriting the existing save.
  2. Clear the localthumbcache.package and remove recent mods, then save again.
  3. Reset your user folder: rename 'The Sims 4' to 'Sims 4_Backup' so the game rebuilds a clean one.
Update / launch error after patch The game won't start or errors right after an update

Cause: Outdated mods or a partially applied update.

Fix:
  1. Repair the game in the EA app/Steam so all packs update, not just the base game.
  2. Disable mods and script mods in Game Options, then relaunch.
  3. Reset the user folder if repairing doesn't resolve it.
121 Load-household error, often right after a game update

Cause: Outdated mods or custom content that a patch made incompatible, failing when the household loads.

Fix:
  1. Move the Mods folder out, launch, then reintroduce mods in halves to find the culprit.
  2. Update every mod/CC to the current patch version.
  3. Repair the game via the EA app after cleaning mods.
140 Save/load error tied to outdated mods (events or aspirations)

Cause: Script mods that add events or aspirations became incompatible after a patch.

Fix:
  1. Update or remove the event/aspiration mods flagged by the error.
  2. Test with the Mods folder disabled to confirm the cause.
  3. Clear localthumbcache.package, then relaunch.
109 Loading error caused by incompatible mods/CC

Cause: Broken custom content or a script mod prevents the world/lot from loading.

Fix:
  1. Remove recently added CC and script mods, then launch.
  2. Update mods to versions matching the current patch.
  3. Repair the game and rebuild the cache files.
111 A lot in the neighborhood refuses to load

Cause: A corrupted game object ('faulty wild rabbit') blocks loading of affected lots.

Fix:
  1. Travel to a different lot, then back, to force the game to rebuild it.
  2. Disable mods and clear cache to rule out CC corruption.
  3. Restore from an earlier save if the lot stays broken.
510 Save error — the game couldn't write your save

Cause: A corrupted save, a full or permission-locked user folder, or a mod interfering with saving.

Fix:
  1. Use 'Save As' with a new name instead of overwriting.
  2. Free space and check write permissions on the Documents\Electronic Arts\The Sims 4 folder.
  3. Remove recent mods and clear localthumbcache.package, then save again.
532 Save error, frequently linked to custom content

Cause: Broken CC or a script mod prevents the household/lot from saving.

Fix:
  1. Remove the most recent CC/mods and try 'Save As'.
  2. Rename the 'The Sims 4' user folder so the game rebuilds a clean one.
  3. Repair the game via the EA app, then re-add mods one at a time.

Fixes that work for most The Sims 4 (PC / Mac, EA app & Steam) errors

  1. Check the game's server status first (official status page, or the studio's support/X account) — most named connection errors are a maintenance window or outage, and no local fix will help until servers are back.
  2. Restart the game and your PC/console, and power-cycle your router — a fresh connection clears the majority of temporary login and connection errors.
  3. On PC, allow the game and its launcher through your firewall and antivirus, and disable any VPN or proxy — these block the authentication handshake behind many 'can't connect' codes.
  4. Flush your DNS (Command Prompt: ipconfig /flushdns) or switch to a public DNS like 8.8.8.8 / 1.1.1.1 if the game can't reach its servers.
  5. Verify/repair the game files (Steam: Properties -> Installed Files -> Verify; launcher: repair) if the error points at a corrupted install or update.

FAQ

How do I fix error code 102 or 123 in The Sims 4?

These are script-mod or custom-content conflicts (102 is often incompatible CC beds, 123 children's drawings/CC). Remove large overhaul and script mods from your Mods folder, launch the game, then add them back one at a time to find the culprit; update or delete the flagged CC; and repair the game afterward via right-click -> Repair.

Why does The Sims 4 give error code 110 after an update?

Error 110 means a patch made your installed mods incompatible. Update all mods to versions matching the current patch, temporarily move the Mods folder out to confirm mods are the cause, then re-enable them one at a time and update any that trigger the error.

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