FiveM crashes have many causes: outdated artifacts, corrupt cache, bad MLOs, antivirus interference, and server-side resource errors. Here is how to diagnose and fix them.
Client-Side Fixes
1. Clear FiveM Cache
Close FiveM completely. Navigate to:
%localappdata%/FiveM/FiveM.app/data/cache
Delete everything inside the cache folder. Restart FiveM.
2. Update FiveM
Run the FiveM updater or reinstall from fivem.net. Outdated clients crash on servers running newer artifact versions.
3. Update GTA V
Ensure GTA V is fully updated through Steam, Epic, or Rockstar Launcher. FiveM requires a legal, updated copy.
4. Disable Antivirus / Whitelist FiveM
Windows Defender and third-party antivirus software frequently flag FiveM files. Add the entire FiveM folder to your antivirus exclusion list.
5. Disable Overwolf / Discord Overlay
Game overlays can conflict with FiveM's rendering. Disable Discord overlay, Overwolf, Medal, and similar tools.
6. Update GPU Drivers
Outdated NVIDIA or AMD drivers cause rendering crashes. Update to the latest stable driver.
7. Verify GTA V Files
Through Steam: Right-click GTA V > Properties > Local Files > Verify Integrity.
Server-Side Crash Causes
Corrupt or Incompatible MLOs
Bad MLO files are the most common server-side crash cause. If players crash when entering a specific area, the MLO in that area is likely corrupt.
Test by disabling MLOs one at a time and checking if crashes stop.
Resource Errors
Check the server console for Lua errors. Crashing resources can destabilize the entire server.
Artifact Version Mismatch
Server artifacts and client versions must be compatible. If you recently updated server artifacts, some players with older FiveM clients may crash.
sv_disableclientreplays
On some FiveM builds, the Rockstar Editor causes crashes. Add to server.cfg:
set sv_disableclientreplays true
Memory Limits
Servers with too many custom assets (vehicles, MLOs, clothing) can exceed client memory limits, especially on 8 GB RAM systems.
FAQ
Why does FiveM keep crashing when loading into a server? Most likely cause: corrupt cache, incompatible MLO, or server artifact mismatch. Clear cache first.
FiveM crashes immediately after launching. What do I do? Reinstall FiveM, update GTA V, update GPU drivers, and whitelist FiveM in antivirus.
FiveM worked yesterday but crashes today. Why? Either GTA V or FiveM auto-updated to an incompatible version, or the server updated artifacts.
Related: sv_disableclientreplays explained, FiveM server requirements, FiveM MLO guide