500 - Internal server error.

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Error Details

File
Error  Index #: 0
Source: .Net SqlClient Data Provider
Class: 20
Number: 53
Procedure:
Message: System.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) ---> System.ComponentModel.Win32Exception (0x80004005): The network path was not found at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) at System.Data.SqlClient.SqlConnection.Open() at PetaPoco.Database.OpenSharedConnection() at PetaPoco.Database.ExecuteScalarInternal[T](CommandType commandType, String sql, Object[] args) at DotNetNuke.Data.PetaPoco.PetaPocoHelper.ExecuteScalar[T](String connectionString, CommandType type, Int32 timeoutSec, String sql, Object[] args) at DotNetNuke.Data.SqlDataProvider.ExecuteScalar[T](String procedureName, Object[] commandParameters) at DotNetNuke.Data.DataProvider.AddLog(String logGUID, String logTypeKey, Int32 logUserID, String logUserName, Int32 logPortalID, String logPortalName, DateTime logCreateDate, String logServerName, String logProperties, Int32 logConfigID, ExceptionInfo exception, Boolean notificationActive) at DotNetNuke.Services.Log.EventLog.DBLoggingProvider.WriteLog(LogQueueItem logQueueItem) ClientConnectionId:00000000-0000-0000-0000-000000000000 Error Number:53,State:0,Class:20