Cannot Initialize The Data Source Object Of OLE DB Provider

When I try to run this SQL "Select * from [GGSyncCSV]...[MerchoMasterInfo#CSV]", I am getting the following error.

OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "GGSyncCSV" returned message "Unspecified error".
Msg 7303, Level 16, State 1, Line 1
Cannot initialize the data source object of OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "GGSyncCSV".

The [GGSyncCSV] link server was created by following SQL statement a couple months ago.

EXEC master.dbo.sp_addlinkedserver @server = N'GGSyncCSV', @srvproduct=N'Jet 4.0', @provider=N'Microsoft.Jet.OLEDB.4.0', @datasrc=N'D:IntegrationGordonGotch', @provstr=N'Text'
EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname=N'GGSyncCSV',@useself=N'False',@locallogin=NULL,@rmtuser=NULL,@rmtpassword=NULL

GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'collation compatible', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'data access', @optvalue=N'true'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'dist', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'pub', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'rpc', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'rpc out', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'sub', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'connect timeout', @optvalue=N'0'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'collation name', @optvalue=null
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'lazy schema validation', @optvalue=N'false'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'query timeout', @optvalue=N'0'
GO
EXEC master.dbo.sp_serveroption @server=N'GGSyncCSV', @optname=N'use remote collation', @optvalue=N'true'

The SQL statement "Select * from [GGSyncCSV]...[MerchoMasterInfo#CSV]" always returns the content of the CSV file until 2 days ago.

I like to ask: is there anything that causes OLE DB provider "Microsoft.Jet.OLEDB.4.0" not working properly?

Any possible solution for this issue?

Thanks.