Server Error in '/' Application.

ERROR [42S22] [MySQL][ODBC 3.51 Driver][mysqld-5.5.62-38.14-log]Unknown column 'userid' in 'where clause'

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.Odbc.OdbcException: ERROR [42S22] [MySQL][ODBC 3.51 Driver][mysqld-5.5.62-38.14-log]Unknown column 'userid' in 'where clause'

Source Error:


Line 52: 			Dim cmd As New ODBCCommand(cmdsql, cn)
Line 53: 			Dim dr As ODBCDataReader
Line 54: 			dr = cmd.ExecuteReader
Line 55: 			If dr.Read = true Then
Line 56: 				session("userid") = userid

Source File: D:\inetpub\webs\polibadeipresscom\conn.aspx    Line: 54

Stack Trace:


[OdbcException (0x80131937): ERROR [42S22] [MySQL][ODBC 3.51 Driver][mysqld-5.5.62-38.14-log]Unknown column 'userid' in 'where clause']
   System.Data.Odbc.OdbcConnection.HandleError(OdbcHandle hrHandle, RetCode retcode) +1111142
   System.Data.Odbc.OdbcCommand.ExecuteReaderObject(CommandBehavior behavior, String method, Boolean needReader, Object[] methodArguments, SQL_API odbcApiMethod) +1059
   System.Data.Odbc.OdbcCommand.ExecuteReaderObject(CommandBehavior behavior, String method, Boolean needReader) +68
   System.Data.Odbc.OdbcCommand.ExecuteReader(CommandBehavior behavior) +79
   System.Data.Odbc.OdbcCommand.ExecuteReader() +12
   ASP.archivio_aspx.accesso_clienti(String userid, String password) in D:\inetpub\webs\polibadeipresscom\conn.aspx:54
   ASP.archivio_aspx.controlla_accesso(String userid, String password) in D:\inetpub\webs\polibadeipresscom\conn.aspx:35
   ASP.archivio_aspx.Page_Load(Object Sender, EventArgs E) in D:\inetpub\webs\polibadeipresscom\archivio.aspx:19
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0