[Sergei]

This command should look like this:

pawn Код:

command(ooc, playerid, params[])
{
    if(isnull(params)) SendClientMessage(playerid, GREY, "USAGE: /Ooc [Text]");
    else
    {
        GetPlayerName(playerid, Name, sizeof(Name)); new string[128];
        format(string, sizeof(string), "((OOC Chat: %s: %s ))" , Name, params);
        SendClientMessageToAll(WHITE, string);
    }
    return 1;
}

Don't use sscanf where you have only one parameter.