How to solve the exception: The remote server returned an unexpected response: (413) Request Entity Too Large.

protected void btnAdd_Click(object sender, EventArgs e)
        {
            
            try
            {
                
                  if (ImageUpload.FileName != "") 
                    {

                        string path = Server.MapPath("~/images/");
                         string extension = Path.GetExtension(ImageUpload.PostedFile.FileName);
                         if (((extension == ".jpg") || ((extension == ".gif") || (extension == ".png"))))

                            {
                             
                               FileStream fs = new FileStream(path+ImageUpload.PostedFile.FileName, FileMode.Open,FileAccess.Read);
                               BinaryReader br = new BinaryReader(fs);
                               byte[] image = br.ReadBytes((int)fs.Length);
                              // byte[] raw = new byte[fs.Length];
                              //fs.Read(raw, 0, Convert.ToInt32(fs.Length));

                               modeldetails.UploadPhoto = image;
                                modeldetails.Serviceno = txtServiceNo.Text;
                                modeldetails.price= long.Parse( txtPrice.Text);
                                modeldetails.Name=txtName.Text;
                                modeldetails.ManfacturedDate=DateTime.Parse(txtManfacDate.Text.ToString());
                                 modeldetails.Manfac_Product_ID=Int32.Parse(ddlProctype.SelectedItem.Value);
                                 bool rows = proxy.AddNewProduct(modeldetails);
                             if (rows)
                                 {
                                     string script = "<script>alert('Data Added Successfully')</script>";
                                     Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "Added", script);
                        
                                    }
                             else
                             {
                                 string script = "<script>alert('Error Adding Data')</script>";
                                 Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "Error", script);
                               }
                        }
                else
                {
                    StatusLabel.Text = "Only Jpg,gif or Png files are permitted";
                }
            }
            else
            {
                StatusLabel.Text = "Kindly Select a File.....";
            }
           
        }
    
        catch (Exception e1)
        {
 
        }

      }

public bool AddNewProduct(Model modeldetails)
        {
            
            SqlConnection con = new SqlConnection(Properties.Settings.Default.constr);
            con.Open();
            SqlCommand insert = new SqlCommand();
            insert.CommandType = CommandType.StoredProcedure;
            insert.CommandText = "AddProduct";
            insert.Connection = con;
            SqlParameter prm = insert.Parameters.Add("@Modelname", SqlDbType.NVarChar, 50);
            prm.Direction = ParameterDirection.Input;
            prm.Value = modeldetails.Name;
            prm = insert.Parameters.Add("@Price", SqlDbType.BigInt);
            prm.Direction = ParameterDirection.Input;
            prm.Value = modeldetails.price;
            prm = insert.Parameters.Add("@ManfacDate", SqlDbType.DateTime);
            prm.Direction = ParameterDirection.Input;
            prm.Value = modeldetails.ManfacturedDate;
            prm = insert.Parameters.Add("@ServiceNo", SqlDbType.NVarChar, 50);
            prm.Direction = ParameterDirection.Input;
            prm.Value = modeldetails.Serviceno;
            prm = insert.Parameters.Add("@MprocID", SqlDbType.Int);
            prm.Direction = ParameterDirection.Input;
            prm.Value = modeldetails.Manfac_Product_ID;
            prm = insert.Parameters.Add("@Image", SqlDbType.Image);
            prm.Direction = ParameterDirection.Input;
            prm.Value = modeldetails.UploadPhoto;
            



            int insertion_done = insert.ExecuteNonQuery();
            if (insertion_done == 1)
                return true;
            else
                return false;

  
        }

[DataContract]
    public class Model
    {
        [DataMember]
        public string Name { set; get; }
        [DataMember]
        public string Serviceno { get; set; }
        [DataMember]
        public long price { get; set; }
        [DataMember]
        public byte[] UploadPhoto { set; get; }
        [DataMember]
        public string Configurationdetails { set; get; }
        [DataMember]
        public DateTime ManfacturedDate { set; get; }
        [DataMember]
        public int Manfac_Product_ID { set; get; }


    }
    [DataContract]
    public class Product
    {
        [DataMember]
        public int ProductID
        {
            get;
            set;
        }
        [DataMember]
        public string ProductName
        {
            get;
            set;
        }
        [DataMember]
        public int Manfac_Product_ID
        {
            get;
            set;
        }
    }
    [DataContract]
    public class Manfacture
    {
        [DataMember]
        public int ManfacturerID
        {
            get;
            set;
        }
        [DataMember]
        public string ManfactureName
        {
            get;
            set;
        }

    }

<system.servicemodel>
    <bindings>
      <basichttpbinding>
         <binding maxbufferpoolsize="2147483647" maxbuffersize="2147483647" maxreceivedmessagesize="2147483647" messageencoding="Text">
          <readerquotas maxdepth="2000000" maxstringcontentlength="2147483647" maxarraylength="2147483647" maxbytesperread="2147483647" maxnametablecharcount="2147483647" />    
      
        </binding>
      </basichttpbinding>
        
    </bindings>
    <services>
      
      <service name="StoreServiceLibrary.Store">
        
        <endpoint address="" binding="basicHttpBinding" contract="StoreServiceLibrary.IStore">
          
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseaddress="http://localhost:8733/Design_Time_Addresses/StoreServiceLibrary/Service1/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <servicebehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information, 
          set the values below to false before deployment -->
          <servicemetadata httpgetenabled="True" httpsgetenabled="True" />
          <!-- To receive exception details in faults for debugging purposes, 
          set the value below to true.  Set to false before deployment 
          to avoid disclosing exception information -->
          <servicedebug includeexceptiondetailinfaults="False" />
        </behavior>
      </servicebehaviors>
    </behaviors>
  </system.servicemodel>