Error: Server Error in '/NetClassroom7' Application. Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression-when logging into Netclassroom

All NetClassroom users may receive the following error when attempting to log into NetClassroom. They receive the error immediately after clicking the Login button. The usernames are entered exactly as they are listed on the records in Education Edge.

Full error message reads:

Server Error in '/NetClassroom7' Application.

Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
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.SqlClient.SqlException: Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

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:

 [SqlException (0x80131904): Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.]    Blackbaud.Web.FE.NC7.CustomizableHomePage.GetResultCollection() +486    Blackbaud.Web.FE.NC7.CustomizableHomePage.Page_PreRender(Object sender, EventArgs e) +915    System.EventHandler.Invoke(Object sender, EventArgs e) +0    System.Web.UI.Control.OnPreRender(EventArgs e) +8695510    System.Web.UI.Control.PreRenderRecursiveInternal() +80    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Control.PreRenderRecursiveInternal() +171    System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842   

Version Information: Microsoft .NET Framework Version:2.0.50727.5420; ASP.NET Version:2.0.50727.5420

We are currently evaluating this issue and will update this article when we have more information.

Environment

 7.87.164.0003

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