When storing/loading attachments, GeniusConnect adds "order by" to select the attachments from DB, sorted by Attachment number/index.
I guess you have mapped an oracle LONG datatype to Outlook column Attachment Number.
Cause: A value of datatype LONG was used in a function or in a DISTINCT,WHERE, CONNECT BY, GROUP BY, or ORDER BY clause. A LONG value can onlybe used in a SELECT clause.
You have to change the columns datatype.