Please help
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: Login failed for user 'IIS APPPOOL\ASP.NET v4.0'.
Source Error:
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<td> 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. </td>
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Stack Trace:
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[SqlException (0x80131904): Login failed for user 'IIS APPPOOL\ASP.NET v4.0'.]
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +690
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +89
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6296606
System.Data.SqlClient.SqlConnection.Open() +300
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetNewOpenConnection() +274
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetOpenConnection(Boolean disposeInnerConnection) +73
Microsoft.Practices.EnterpriseLibrary.Data.Database.DiscoverParameters(DbCommand command) +55
Microsoft.Practices.EnterpriseLibrary.Data.ParameterCache.SetParameters(DbCommand command, Database database) +132
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetStoredProcCommand(String storedProcedureName, Object[] parameterValues) +135
DotShoppingCart.OpenSource.Core.DbFileBase.GetTimeStamp(String host, Object key, Boolean enableSqlDep, SqlCacheDependency& dep) +144
DotShoppingCart.OpenSource.Core.DbFileBase.GetFile(String host, Object key, Boolean enableSqlDep) +190
DotShoppingCart.OpenSource.Core.BasePage.OnPreInit(EventArgs e) +864
System.Web.UI.Page.PerformPreInit() +49
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1700
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