[Emmet_]

Try this - you were using sscanf incorrectly:

pawn Код:

CMD:register(playerid, params[])
{
    new 
        file[40], 
        string[128],
        pname[MAX_PLAYER_NAME];
    
    GetPlayerName(playerid, pname, sizeof(pname));
    format(file, sizeof(file), "Users/%s.ini", pname);
    
    if (isnull(params))
        return SendClientMessage(playerid, RED, "Use /register password");
    
    if (!fexist(file))
    {
        dini_Create(file);
        dini_Set(file, "Password", params);
        dini_IntSet(file, "Level", 0);
        dini_IntSet(file, "Score", GetPlayerScore(playerid));
        dini_IntSet(file, "Money", GetPlayerMoney(playerid));
        dini_IntSet(file, "Deaths", PlayerInfo[playerid][Deaths]);
        dini_IntSet(file, "Kills", PlayerInfo[playerid][Kills]);
        
        format(string, sizeof(string), "[SYSTEM] You have been sucessfully registered! You password is: {FF1E00}%s", params);
        SendClientMessage(playerid, GREEN, string);

        PlayerPlaySound(playerid,1057,0.0,0.0,0.0);
        PlayerInfo[playerid][logged] = 1;
    }
    else
    {
        SendClientMessage(playerid, RED, "You are already registered.");
    }
    return 1;
}

You shouldn't really use dini, but that's entirely up to you. Also, hash your passwords please!