System.Data.SqlClient.SqlException (0x80131904): Si è verificato un errore a livello di trasporto durante la ricezione dei risultati dal server. (provider: Session Provider, error: 19 - Impossibile utilizzare la connessione fisica) in System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) in System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) in System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject stateObj, UInt32 error) in System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync() in System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket() in System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer() in System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte& value) in System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) in System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() in System.Data.SqlClient.SqlDataReader.get_MetaData() in System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted) in System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest) in System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) in System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) in System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) in System.Data.SqlClient.SqlCommand.ExecuteReader() in LB3WebClass.LB3DBClass.GetValore(String SQLString, String CampoSQL, String tableDB) in LB3WebClass.WebClass.GetDBPageIDFromRequestIDPagina(String idpagina, String table, String fieldname) ClientConnectionId:e67acaf4-90e4-4360-8260-2d6c5e5fb1c9 Error Number:-1,State:0,Class:20