[[MM]RoXoR[FS]]

I am sure what you are doing is copy pasting script from somewhere without even knowing what it does.
I can surely say that wont work.

I suggest you to start from Basics.

Here, I fixed your code

pawn Код:

#include <a_samp>
#include <YSI\y_ini>
#include <ZCMD>
#include <dudb>
#include <dini>
//------------------------------------------------------------------------------
//
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
//Defines
//------------------------------------------------------------------------------
#define COLOR_GREEN 0x00FF04FF
#define COLOR_RED 0xFF0000FF
#define COLOR_YELLOW 0xFFFB00FF
#define COLOR_ORANGE 0xFFA200FF
#define COLOR_GREY 0xBABABAFF
#pragma tabsize 0
#define PATH "/Users/%s.ini"
//------------------------------------------------------------------------------
enum pInfo
{
    pPass,
    pSkin,
    pColor,
    pCash,
    pAdmin,
    pKills,
    pDeaths,
    pIP[20],
    LoggedIn
}
new PlayerInfo[MAX_PLAYERS][pInfo];

new Failed[MAX_PLAYERS];
//------------------------------------------------------------------------------
forward LoadUser_data(playerid,name[],value[]);
public LoadUser_data(playerid,name[],value[])
{
    INI_Int("Password",PlayerInfo[playerid][pPass]);
    INI_Int("Skin",PlayerInfo[playerid][pSkin]);
    INI_Int("Color",PlayerInfo[playerid][pColor]);
    INI_Int("Cash",PlayerInfo[playerid][pCash]);
    INI_Int("Admin",PlayerInfo[playerid][pAdmin]);
    INI_Int("Kills",PlayerInfo[playerid][pKills]);
    INI_Int("Deaths",PlayerInfo[playerid][pDeaths]);
    return 1;
}
//------------------------------------------------------------------------------
stock UserPath(playerid)
{
    new string[128],playername[MAX_PLAYER_NAME];
    GetPlayerName(playerid,playername,sizeof(playername));
    format(string,sizeof(string),PATH,playername);
    return string;
}
//------------------------------------------------------------------------------
/*stock udb_hash(buf[]){
    new length=strlen(buf);
    new s1 = 1;
    new s2 = 0;
    new n;
    for (n=0; n<length; n++)
    {
        s1 = (s1 + buf[n]) % 65521;
        s2 = (s2 + s1)     % 65521;
    }
    return (s2 << 16) + s1;
}*/
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// OnPlayerConnect (Register, Login, Auto Login...
//------------------------------------------------------------------------------
public OnPlayerConnect(playerid)
{
    if(fexist(UserPath(playerid)))
    {
        INI_ParseFile(UserPath(playerid), "LoadUser_%s", .bExtra = true, .extra = playerid);
            new tmpip[20];
            GetPlayerIp(playerid,tmpip,20);

                       if(!strcmp(tmpip,PlayerInfo[playerid][pIP],true))
                    {
                    
                    SendClientMessage(playerid,COLOR_GREEN,"You have been automatically logged in.");
                    }
            else
            {
            SendClientMessage(playerid,COLOR_ORANGE,"There was something wrong, you are not automatically logged in. Please /login.");
            }
    }
    else
    {
        SendClientMessage(playerid,COLOR_ORANGE,"Welcome, you are NOT registered. Please /register.");
    }
        return 1;}
//------------------------------------------------------------------------------
// OnPlayerDisconnect
//------------------------------------------------------------------------------
public OnPlayerDisconnect(playerid, reason)
{
    new INI:File = INI_Open(UserPath(playerid));
    INI_SetTag(File,"data");
    INI_WriteInt(File,"Skin",GetPlayerSkin(playerid));
    INI_WriteInt(File,"Color",GetPlayerColor(playerid));
    INI_WriteInt(File,"Cash",GetPlayerMoney(playerid));
    INI_WriteInt(File,"Admin",PlayerInfo[playerid][pAdmin]);
    INI_WriteInt(File,"Kills",PlayerInfo[playerid][pKills]);
    INI_WriteInt(File,"Deaths",PlayerInfo[playerid][pDeaths]);
    INI_Close(File);
    return 1;
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// OnPlayerDeath +kills +Deaths etc..
//------------------------------------------------------------------------------
public OnPlayerDeath(playerid, killerid, reason)
{
    PlayerInfo[killerid][pKills]++;
    PlayerInfo[playerid][pDeaths]++;
    return 1;
}
//==============================================================================
//------------------------------------------------------------------------------
// Register command (/register)
//------------------------------------------------------------------------------

CMD:register(playerid,params[])
{
        new name[90];
        GetPlayerIp(playerid,PlayerInfo[playerid][pIP],20);
        GetPlayerName(playerid,name,sizeof(name));
        if (PlayerInfo[playerid][LoggedIn] == 1) return SendClientMessage(playerid,COLOR_GREEN,"You have been succesfully logged in.");
        if (udb_Exists(name)) return SendClientMessage(playerid,COLOR_ORANGE,"Sorry, this account is already exists, please login or choose another nickname.");
        if (strlen(params) == 0) return SendClientMessage(playerid,COLOR_ORANGE,"You must be type /register <password>");
        if (udb_Create(name,params))
        {
                new file[256],ip[100],tmp[260];
                GetPlayerName(playerid,name,sizeof(name)); format(file,sizeof(file),"%s.ini",udb_encode(name));
                GetPlayerIp(playerid,ip,100);
                dini_Set(file,"ip",tmp);
                dUserSetINT(name).("Skin",0);
                dUserSetINT(name).("Color",0);
                dUserSetINT(name).("Cash",0);
                dUserSetINT(name).("Admin",0);
                dUserSetINT(name).("Kills",0);
                dUserSetINT(name).("Deaths",0);
                PlayerInfo[playerid][LoggedIn] = 1;
                SendClientMessage(playerid,COLOR_GREEN, "You have been succesfully registered and logged in.");
                PlayerPlaySound(playerid,1057,0.0,0.0,0.0);
                return 1;
        }
        return 1;
}

//------------------------------------------------------------------------------
// Login command (/login)
//------------------------------------------------------------------------------

CMD:login(playerid,params[])
{
        new name[24];
        GetPlayerIp(playerid,PlayerInfo[playerid][pIP],20);
        GetPlayerName(playerid,name,sizeof(name));
        if (PlayerInfo[playerid][LoggedIn] == 1) return SendClientMessage(playerid,COLOR_ORANGE,"Sorry, you are already logged in.");
        if (!udb_Exists(name)) return SendClientMessage(playerid,COLOR_ORANGE,"This account doesn't exist, please use /register <password>.");
        if (strlen(params)==0) return SendClientMessage(playerid,COLOR_ORANGE,"You must be type login <password>");
        if (udb_CheckLogin(name,params))
        {
                new file[256], tmp3[100];
                format(file,sizeof(file),"%s.ini",udb_encode(name));
                GetPlayerIp(playerid,tmp3,100);
                dini_Set(file,"ip",tmp3);
                SendClientMessage(playerid,COLOR_GREEN,"You have been successfully logged in");
        }
        else
        {
                Failed[playerid]++;
                if(Failed[playerid] == 5)
                {
                        new string[128];
                        format(string, sizeof(string), "%s has been kicked for bad login attempts.",name);
                        SendClientMessageToAll(COLOR_RED, string);
                        Kick(playerid);
                }
                return SendClientMessage(playerid,COLOR_ORANGE,"Login failed! incorrect password.");
        }
        return 1;
}