MTA:SA error code
MTA:SA error CC31
MTA could not load the mod it needs for that server.
How to fix it
Repair your MTA installation
Run the current installer from multitheftauto.com over your existing installation. It replaces MTA's own files without touching your settings.
Install the current MTA update
Close MTA and run the current installer from multitheftauto.com. Several connection codes are simply an old client meeting a newer server.
Still not fixed? Copy the whole message, not only the code, and check your log in the Fix tool. It is read on your own computer.
About this code
MTA's own client shows a CC code when something fails before or during a connection: the address, the nickname, a module it could not load, or the connection itself. MTA's own documentation gives CC31 as Mod loading failure.
All fix guides · Every MTA:SA error code · Crash codes and offsets
Where this comes from
Read on 5 September 2026 and written in our own words here.