gamemode error

#include <a_samp>
#include <core>
#include <float>
#include <Pawn.CMD>
native WP_Hash(buffer[], len, const str[]);

#pragma tabsize 0

enum USER_DATA {
    USER_ID,
    USER_NAME[MAX_PLAYER_NAME],
    USER_PASSWORD[129],
    USER_ADMIN
};
enum {
    DIALOG_REGISTER, // DIALOG_REGISTER is 0
    DIALOG_LOGIN // DIALOG_LOGIN is 1
};

new
    User[MAX_PLAYERS][USER_DATA];

new DB:Database;
ConnectDatabase() {
    //if(Database == DB:0) {
    if((Database = db_open("usrp.db")) == DB:0) {
        print("[DB] No fue posible hacer conexion con la base de datos.\n");
        SendRconCommand("exit");
    } else {
        db_query(Database, "PRAGMA synchronous = OFF");
        db_query(Database, "CREATE TABLE IF NOT EXISTS users (userid INTEGER PRIMARY KEY AUTOINCREMENT, username VARCHAR(24) COLLATE NOCASE, password VARCHAR(129), admin INTEGER DEFAULT 0 NOT NULL)");
        print("[DB] La base de datos fue conectada correctamente.\n");
    } return 1;
}

public OnPlayerConnect(playerid) {
    new tmp[USER_DATA];
    User[playerid] = tmp;
    GetPlayerName(playerid, User[playerid][USER_NAME], MAX_PLAYER_NAME);
    new Query[82], DBResult: Result;
    format(Query, sizeof Query, "SELECT password FROM users WHERE username = '%q' LIMIT 1", User[playerid][USER_NAME]);
    Result = db_query(Database, Query);
    if (db_num_rows(Result)) {
        db_get_field_assoc(Result, "password", User[playerid][USER_PASSWORD], 129);
        ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_PASSWORD, "Ingresar", "Ingresa tu contraseña para ingresar.", "Ingresar", "Salir");
    } else {
        ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "Registro", "Ingresa una contraseña para registrar tu cuenta.", "Registrar", "Salir");
    }
    db_free_result(Result);
    return 1;
}
public OnPlayerDisconnect(playerid, reason) {
    new tmp[USER_DATA];
    User[playerid] = tmp;

    new Query[51];
    format(Query, sizeof Query, "UPDATE users SET admin = %d WHERE userid = %d", User[playerid][USER_ADMIN], User[playerid][USER_ID]);
    db_query(Database, Query);
    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    switch (dialogid)
    {
        case DIALOG_REGISTER:
        {
            if (!response) return Kick(playerid);
            if (!(3 <= strlen(inputtext) <= 20)) {
                SendClientMessage(playerid, -1, "[ERROR]: La contraseña debe ser mayor a 3 caracteres y menor a 20 caracteres." );
                ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "Registro", "Ingresa una contraseña para registrar tu cuenta.", "Registrar", "Salir" );
                return 1;
            }
            new Query[208];
            WP_Hash(User[playerid][USER_PASSWORD], 129, inputtext);
            format(Query, sizeof Query, "INSERT INTO users (username, password) VALUES ('%q', '%s')", User[playerid][USER_NAME], User[playerid][USER_PASSWORD]);
            db_query(Database, Query);
            SendClientMessage(playerid, -1, "[SERVER]: Has sido registrado correctamente.");

            new DBResult: Result;
            Result = db_query(Database, "SELECT last_insert_rowid()");
            User[playerid][USER_ID] = db_get_field_int(Result);
            db_free_result(Result);

        }
        case DIALOG_LOGIN:
        {
            if (!response) return Kick(playerid);
            new buf[129];

            WP_Hash(buf, 129, inputtext);
            if (strcmp(buf, User[playerid][USER_PASSWORD]))
            {
                SendClientMessage(playerid, -1, "[ERROR]: Contraseña incorrecta, intentalo de nuevo.");
                ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_PASSWORD, "Ingresar", "Ingresa tu contraseña para ingresar.", "Ingresar", "Salir" );
            }

            new DBResult: Result;
            format(buf, sizeof buf, "SELECT * FROM users WHERE username = '%q' LIMIT 1", User[playerid][USER_NAME]);
            Result = db_query(Database, buf);

            if (db_num_rows(Result)) {
                User[playerid][USER_ID] = db_get_field_assoc_int(Result, "userid");
                User[playerid][USER_ADMIN] = db_get_field_assoc_int(Result, "admin");
                SendClientMessage(playerid, -1, "[SERVER]: Has sido correctamente ingresado!");
            }
            db_free_result(Result);
        }
        default: return 0;
    }
    return 1;
}

public OnPlayerSpawn(playerid) {
    SetPlayerInterior(playerid,0);
    TogglePlayerClock(playerid,0);
    SetPlayerPos(playerid, 2098.5884, -1760.7990, 13.5625);
    return 1;
}

public OnGameModeInit() {
    ConnectDatabase();
    print("Im working.");
    return 1;
}

public OnGameModeExit() {
    if(Database) {
        db_close(Database);
    }
    return 1;
}