Hello,

Ive created a website using ASP.NET which works very well in my local computer with SQL. After hiring a location in a web host, I uploaded files of my website to the hosting server. When i try to run the web page, i get an error which is shown below :

Server Error in '/' Application.

Security Exception

Description: The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. 

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 

[SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
   System.Web.Security.UrlAuthorizationModule.CheckUrlAccessForPrincipal(String virtualPath, IPrincipal user, String verb) +42
   Microsoft.AspNet.FriendlyUrls.Abstractions.UrlAuthorizationModuleWrapper.CheckUrlAccessForPrincipal(String virtualPath, IPrincipal user, String verb) +14
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlRoute.GetWebObjectFactory(HttpContextBase httpContext, String modifiedVirtualPath) +159
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlRoute.Resolve(HttpContextBase httpContext, IList`1 extensions, String virtualPathOverride, IFriendlyUrlRouteSupportFunctions supportFunctions) +220
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlRoute.Microsoft.AspNet.FriendlyUrls.Abstractions.IFriendlyUrlRouteSupportFunctions.Resolve(HttpContextBase httpContext, IList`1 extensions, String virtualPathOverride) +16
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlRoute.GetRouteData(HttpContextBase httpContext, String pathOverride, IFriendlyUrlRouteSupportFunctions supportFunctions) +140
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlRoute.GetRouteData(HttpContextBase httpContext, String pathOverride) +9
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlsModule.RedirectToFriendlyUrl(HttpContextBase httpContext, IFriendlyUrlRoute route, IVirtualPathUtility virtualPathUtility) +346
   Microsoft.AspNet.FriendlyUrls.FriendlyUrlsModule.<Init>b__0(Object sender, EventArgs e) +171
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +136
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69

I made many search in internet if there is a solution, but i couldnt find any. Some suggestions are to change security level in web.config by using 

<trust level="Full" originUrl=""/> 

<?xml version="1.0"?><!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  --><configuration><configSections><!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --><section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/><sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"><sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"><section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/><sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"><section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/><section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/><section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/><section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere"/></sectionGroup></sectionGroup></sectionGroup></configSections><connectionStrings><add name="ACLSQLConnection" connectionString="Data Source=94.73.145.5;Initial Catalog=DB140602015926;Integrated Security=True;  User Id=USR;Password=PWD;" providerName=".NET Framework Data Provider for SQL Server"/><add name="DefaultConnection" connectionString="Data Source=\94.73.145.5;Initial Catalog=DB140602015926;Integrated Security=True;  User Id=USR;Password=PWD;" providerName=".NET Framework Data Provider for SQL Server"/></connectionStrings><system.webServer><validation validateIntegratedModeConfiguration="false"/></system.webServer><system.web><compilation debug="true" targetFramework="4.5"><assemblies><add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/><add assembly="System.Windows.Forms.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/><add assembly="System.Windows.Forms.DataVisualization.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/></assemblies></compilation><customErrors mode="Off"/><httpRuntime targetFramework="4.5"/><pages><namespaces><add namespace="System.Web.Optimization"/><add namespace="Microsoft.AspNet.Identity"/></namespaces><controls><add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/></controls></pages><membership><providers><!--
        ASP.NET Membership is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        --><clear/></providers></membership><profile><providers><!--
        ASP.NET Membership Profile is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        --><clear/></providers></profile><roleManager><!--
          ASP.NET Membership Role is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        --><providers><clear/></providers></roleManager><!--
            If you are deploying to a cloud environment that has multiple web server instances,
            you should change session state mode from "InProc" to "Custom". In addition,
            change the connection string named "DefaultConnection" to connect to an instance
            of SQL Server (including SQL Azure and SQL  Compact) instead of to SQL Server Express.
      --><sessionState mode="Custom" customProvider="DefaultSessionProvider"><providers><add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection"/></providers></sessionState></system.web><runtime><assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><dependentAssembly><assemblyIdentity name="WebGrease" culture="neutral" publicKeyToken="31bf3856ad364e35"/><bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234"/></dependentAssembly></assemblyBinding></runtime><entityFramework><defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework"/><providers><provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/></providers></entityFramework></configuration>

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18067