Thanks for you help--------------This is the web.config file i have
but i am getting the same error.. I have added the code
<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
</sectionGroup>
</sectionGroup>
</sectionGroup>
<section name="NopConfig" type="NopSolutions.NopCommerce.BusinessLogic.Configuration.NopConfig, Nop.BusinessLogic" requirePermission="false"/>
<section name="urlrewritingnet" type="UrlRewritingNet.Configuration.UrlRewriteSection, UrlRewritingNet.UrlRewriter" requirePermission="false"/>
<sectionGroup name="nopDataProviders">
<section name="LogProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="SearchLogProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CategoryProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="SettingProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="BlogProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ForumProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="NewsProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="PollProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="TopicProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CustomerProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CountryProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CurrencyProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="LanguageProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="StateProvinceProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="LocaleStringResourceProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="MaintenanceProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ManufacturerProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="MeasureProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="DownloadProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="PictureProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="MessageProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="OrderProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShoppingCartProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CreditCardTypeProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="PaymentMethodProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="PaymentStatusProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ProductAttributeProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="SpecificationAttributeProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ProductProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="AffiliateProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CampaignProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="DiscountProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ACLProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="BlacklistProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShippingByTotalProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShippingByWeightProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShippingByWeightAndCountryProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShippingMethodProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShippingRateComputationMethodProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="ShippingStatusProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="TaxCategoryProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="TaxProviderProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="TaxRateProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="TemplateProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="WarehouseProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
<section name="CustomerActivityProvider" type="NopSolutions.NopCommerce.DataAccess.DBProviderSection, Nop.DataAccess" requirePermission="false"/>
</sectionGroup>
</configSections>
<appSettings>
<add key="UseSSL" value="false" />
<add key="SharedSSL" value="" />
<add key="GoogleMerchantID" value="" />
<add key="GoogleMerchantKey" value="" />
<add key="GoogleEnvironment" value="Sandbox" />
<add key="GoogleAuthenticateCallback" value="True" />
</appSettings>
<connectionStrings configSource="ConnectionStrings.config"/>
<urlrewritingnet configSource="UrlRewriting.config"/>
<system.web>
<httpRuntime maxRequestLength="51200"/>
<customErrors mode="Off"/>
<!-- <customErrors mode="RemoteOnly" defaultRedirect="ErrorPage.htm">
<error statusCode="403" redirect="BannedAddress.htm"/>
<error statusCode="404" redirect="FileNotFound.htm"/>-->
</system.web>
</customErrors>
</configuration>
<compilation debug="true">
<assemblies>
<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
</assemblies>
<expressionBuilders>
<add expressionPrefix="NopResources" type="NopSolutions.NopCommerce.BusinessLogic.Localization.NopResourceExpressionBuilder, Nop.BusinessLogic"/>
</expressionBuilders>
</compilation>
<authentication mode="Forms">
<forms name="NOPCOMMERCE.AUTH" loginUrl="~/Login.aspx" protection="All" timeout="43200" path="/" requireSSL="false" slidingExpiration="true" defaultUrl="~/default.aspx" enableCrossAppRedirects="false"/>
</authentication>
<anonymousIdentification enabled="true"/>
<authorization>
<allow users="*"/>
</authorization>
<membership defaultProvider="NopMembershipSqlProvider" userIsOnlineTimeWindow="15">
<providers>
<add name="NopMembershipSqlProvider" type="NopSolutions.NopCommerce.BusinessLogic.Profile.StoreMembershipProvider, Nop.BusinessLogic" connectionStringName="NopSqlConnection" enablePasswordReset="true" requiresQuestionAndAnswer="false" applicationName="NopCommerce" requiresUniqueEmail="true" enablePasswordRetrieval="true"/>
</providers>
</membership>
<roleManager enabled="true" cacheRolesInCookie="false" defaultProvider="NopRoleManagerSqlProvider" cookieName=".NopCommerceRoles" cookiePath="/" cookieTimeout="30" cookieRequireSSL="false" cookieSlidingExpiration="true" createPersistentCookie="false" cookieProtection="All">
<providers>
<add name="NopRoleManagerSqlProvider" type="NopSolutions.NopCommerce.BusinessLogic.Profile.StoreRoleProvider, Nop.BusinessLogic" connectionStringName="NopSqlConnection" applicationName="NopCommerce"/>
</providers>
</roleManager>
<sessionState timeout="20" mode="InProc" cookieless="false"/>
<siteMap defaultProvider="NopAdminXmlSiteMapProvider" enabled="true">
<providers>
<add name="NopAdminXmlSiteMapProvider" type="System.Web.XmlSiteMapProvider" siteMapFile="Administration/Admin.sitemap" />
</providers>
</siteMap>
<pages theme="DarkOrange">
<namespaces>
<add namespace="System.Collections.Generic"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Audit"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Categories"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Configuration.Settings"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Content.Blog"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Content.Forums"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Content.NewsManagement"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Content.Polls"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.CustomerManagement"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Directory"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Localization"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Manufacturers"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Measures"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Media"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Messages"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Orders"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Payment"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Products.Attributes"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Products.Specs"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Products"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Profile"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Promo.Affiliates"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Promo.Campaigns"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Promo.Discounts"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Security"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.SEO"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Shipping"/>
<add namespace="NopSolutions.NopCommerce.BusinessLogic.Tasks"/>
<add namespace="NopSolutions.NopCommerce.Busines