Hi Sorvik,
I've just uploaded a patched MySql Data layer for version 2.3.7.5. If you download it again and replace mojoPortal.Data.dll with the new one it should solve it.
The solution was to change from this:
sqlCommand.Append("SELECT COALESCE(s.SiteID, -1) ");
to this:
sqlCommand.Append("SELECT COALESCE(s.SiteID, -1) AS SiteID ");
Thanks,
Joe