Server Error in '/' Application.

The context is being used in Code First mode with code that was generated from an EDMX file for either Database First or Model First development.  This will not work correctly. To fix this problem do not remove the line of code that throws this exception. If you wish to use Database First or Model First, then make sure that the Entity Framework connection string is included in the app.config or web.config of the start-up project. If you are creating your own DbConnection, then make sure that it is an EntityConnection and not some other type of DbConnection, and that you pass it to one of the base DbContext constructors that take a DbConnection. To learn more about Code First, Database First, and Model First see the Entity Framework documentation here: http://go.microsoft.com/fwlink/?LinkId=394715

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.Entity.Infrastructure.UnintentionalCodeFirstException: The context is being used in Code First mode with code that was generated from an EDMX file for either Database First or Model First development.  This will not work correctly. To fix this problem do not remove the line of code that throws this exception. If you wish to use Database First or Model First, then make sure that the Entity Framework connection string is included in the app.config or web.config of the start-up project. If you are creating your own DbConnection, then make sure that it is an EntityConnection and not some other type of DbConnection, and that you pass it to one of the base DbContext constructors that take a DbConnection. To learn more about Code First, Database First, and Model First see the Entity Framework documentation here: http://go.microsoft.com/fwlink/?LinkId=394715

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:


[UnintentionalCodeFirstException: The context is being used in Code First mode with code that was generated from an EDMX file for either Database First or Model First development.  This will not work correctly. To fix this problem do not remove the line of code that throws this exception. If you wish to use Database First or Model First, then make sure that the Entity Framework connection string is included in the app.config or web.config of the start-up project. If you are creating your own DbConnection, then make sure that it is an EntityConnection and not some other type of DbConnection, and that you pass it to one of the base DbContext constructors that take a DbConnection. To learn more about Code First, Database First, and Model First see the Entity Framework documentation here: http://go.microsoft.com/fwlink/?LinkId=394715]
   CertificationEFDataModel.CertificationEntities.OnModelCreating(DbModelBuilder modelBuilder) in C:\wwwroot\Current\Site Setup\comptia-aplus-design.com\Certification EF DataModel\CertificationEntityModel.Context.vb:23
   System.Data.Entity.Internal.LazyInternalContext.CreateModelBuilder() +476
   System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) +20
   System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input) +224
   System.Data.Entity.Internal.LazyInternalContext.InitializeContext() +896
   System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +25
   System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +69
   System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext() +21
   System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider() +66
   System.Linq.Queryable.Where(IQueryable`1 source, Expression`1 predicate) +64
   CertificationWebsite.ContactUtilities.GetCertificationID(String CertificationName) in C:\wwwroot\Current\comptia-aplus-design.com\web\Classes\ContactUtilities.vb:335
   CertificationWebsite.ProductDownloadForm.ddlExamSelection_Init(Object sender, EventArgs e) in C:\wwwroot\Current\comptia-aplus-design.com\web\Modules\Product\ExamDetails\ProductDownloadForm.ascx.vb:89
   System.Web.UI.Control.OnInit(EventArgs e) +108
   System.Web.UI.WebControls.BaseDataBoundControl.OnInit(EventArgs e) +20
   System.Web.UI.Control.InitRecursive(Control namingContainer) +173
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +219
   Telerik.Sitefinity.Web.UI.UserControlWrapper.OnInit(EventArgs e) +178
   System.Web.UI.Control.InitRecursive(Control namingContainer) +173
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Control.InitRecursive(Control namingContainer) +380
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +491


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0