[Liustas]

This part of your code should look something like this:

Code:

case DIALOG_LOGIN: 
      {
            if(response) 
            {
                new query[210], pname[24], escapepass[100];//
                GetPlayerName(playerid, pname, 24); //Gets the players name
                mysql_real_escape_string(inputtext, escapepass); //We escape the inputtext to avoid SQL injections.
                format(query, sizeof(query), "SELECT * FROM playerdata WHERE user = '%s' AND password = SHA1('%s')", pname, escapepass);
    			mysql_function_query(connection, query, true, "LoadPlayerData", "i", playerid);
            }
            else
            {
                SendClientMessage(playerid, COLOR_LIGHTRED, "Error{FFFFFF}: You have chosen to quit Domination Roleplay, please visit us again soon!");
                Kick(playerid);
            }
            return 1;
        }
        
public LoadPlayerData(playerid)
{
    new rows, fields;
    cache_get_data(rows, fields, connection);

    if(rows)
	    {
        new savingstring[20];
        
        cache_get_field_content(0, "Level",savingstring, connection);SetPlayerScore(playerid, strval(savingstring));
        cache_get_field_content(0, "Money",savingstring, connection);MoneyGiven[playerid] = strval(savingstring);
        cache_get_field_content(0, "PlayerPosX",savingstring, connection);PlayerVar[playerid][pPosX] = floatstr(savingstring);
        cache_get_field_content(0, "PlayerPosY",savingstring, connection);PlayerVar[playerid][pPosY] = floatstr(savingstring);
        cache_get_field_content(0, "PlayerPosZ",savingstring, connection);PlayerVar[playerid][pPosZ] = floatstr(savingstring);
        cache_get_field_content(0, "InteriorID",savingstring, connection); PlayerVar[playerid][InteriorID] = strval(savingstring);
        cache_get_field_content(0, "SkinID",savingstring, connection);PlayerVar[playerid][SkinID] = strval(savingstring);

        SetPlayerHealth(playerid, 100);
        TextDrawHideForPlayer(playerid, WIDESCREEN_TOP);
        TextDrawHideForPlayer(playerid, WIDESCREEN_BOTTOM);
        TextDrawHideForPlayer(playerid, WelcomeTD);
        TogglePlayerSpectating(playerid, 0);
        SetPVarInt(playerid, "prelogin", 0);
        SetPlayerWeapons(playerid);
        SetPlayerWeaponsEx(playerid);
        SendClientMessage(playerid, -1, "You have been logged in!"); //Sends the client a message.
        Logged[playerid] = 1; //Sets our logged in variable to one
        SetPlayerInterior(playerid, PlayerVar[playerid][InteriorID]);
        SetSpawnInfo(playerid, 0, PlayerVar[playerid][SkinID], PlayerVar[playerid][pPosX], PlayerVar[playerid][pPosY], PlayerVar[playerid][pPosZ], 0, 0, 0, 0, 0, 0, 0);
        SpawnPlayer(playerid);
	    }
	else
	    {
        //This means that the password that the player
        //typed was incorrect and we will resend the dialog.
        format(string, sizeof(string), "Welcome back, %s. Please enter your password below to log in.", GetName(playerid));
        ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_INPUT, "Login", string, "Confirm", "Quit");
        SendClientMessage(playerid, COLOR_LIGHTRED, "Error{FFFFFF}: You have entered an incorrect password."); //Sends the client a error message
	    }
	return 1;
}

This code is untested, so there may be some errors. I just give you an example.