Pluton Mysql Plugin

namespace Pluton
{
    using System;
    using MySql.Data.MySqlClient;

    public class Storage
    {
        private MySqlConnection Conn;
        private static Storage instance;

        public static Storage GetInstance()
        {
            if (instance == null)
                instance = new Storage();
            return instance;
        }

        public MySqlConnection Connect(string host, string user, string db, string port, string pass)
        {
            MySqlConnection connection;
            try
            {
                connection = new MySqlConnection(String.Format("server={0};user={1};database={2};port={3};password={4};", host, user, db, port, pass));
                connection.Open();
                Logger.LogDebug("MySql Connection Opened.");
                return connection;
            }
            catch (Exception ex)
            {
                Logger.LogError("Could not Connect to MySQL Server");
                Logger.LogException(ex);
                return new MySqlConnection();
            }
        }

        public object Query(string query, MySqlConnection Conn)
        {
            MySqlDataReader dr;

            try
            {
                MySqlCommand cmd = new MySqlCommand(query, Conn);
                dr = cmd.ExecuteReader();
            }
            catch (Exception ex)
            {
                Logger.LogError("MySql Query Error");
                Logger.LogException(ex);
                return false;
            }
            return dr;
        }

        public object QueryCount(string query, MySqlConnection Conn)
        {
            object data;
            try
            {
                MySqlCommand cmd = new MySqlCommand(query, Conn);
                data = cmd.ExecuteScalar();
                if (data != null)
                    int d = Convert.ToInt32(data);
            }
            catch (Exception ex)
            {
                Logger.LogError("MySql Query Count Error");
                Logger.LogException(ex);
                return false;
            }
            return data;
        }

        public bool Insert(string query, MySqlConnection Conn)
        {
            int inst;
            try
            {
                MySqlCommand cmd = new MySqlCommand(query, Conn);
                inst = cmd.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                Logger.LogError("MySql Insert Error");
                Logger.LogException(ex);
                return false;
            }

            if (inst > 0)
                return true;
            else
                return false;
        }
    }
}