CITMTA & CIT FixCIT Tools

MTA:SA error code

MTA:SA error CC42

MTA could not start with the mod given on the command line.

Code
CC42
Where you see it
A dialog from MTA itself
MTA's own wording
Command-line mod failure
Family
CC codes

What it means

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 this code as Command-line mod failure.

How to fix it

Work down the list and stop when it is solved.

  1. 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.

  2. Copy the whole message first

    Write down every line MTA shows, not only the code. The rest of the message often names the file, the server or the reason, and that is what tells you which step below applies.

Still stuck? The Fix tool reads MTA's own log on your computer and points at the matching steps. Nothing is uploaded.

Open the Fix tool

Other CC codes

Where this comes from

Meanings read from these sources on 5 September 2026 and written in our own words here.