[HazardouS]

pawn Код:

public OnPlayerCommandPerformed(playerid, cmdtext[], success)
{
    if (!success)
    {
        SendClientMessage(playerid,white,"{FFFFFF}S{FFFF00}E{FF0000}RVER: This command has not found in the System, Please use /cmds(/commands) or /help For more Info.");
    }
    return 1;
}

Try something like this. You got the point.