Hi Krisma,
Not sure if this is related to your problem.
When installing DI API 32 bit, you will get a folder called \SAP\SAP Business One DI API\DI API 89
When referencing this SAPbobsCOM89.dll, and connecting using the stand alone DI API, I always get this error 'Database Server type not supported.'
Just make sure you are not referencing this SAPbobsCOM89.dll
Regards
Edy