Hi,
Without knowing the exact error message, I'm thinking that someone possibly opened that GL8 data with GL9 before you and then cancelled the conversion before it had an opportunity to complete. If this is the case, fixing it would require restoring a version 8 copy of the data from 'before' this occurred or doing a file by file compare, with perhaps some trial and error, to remove the GL9 files that already exist that would probably be best accomplished by your Adagio consultant.
GL9 is able to maintain multiple years of data within a single data folder and extension (unlike GL8). Often, rather than convert the data to version 9 and use it within a separate data folder (as in the old GL8 days), a site will use the Import | Prior Year Data function to import the GL8 data into the GL9 data. However, before this could be accomplished, the data would need to be cleaned up which again would probably be best handled by your Adagio consultant.
GL8.1A can also be installed as it occupies a separate program folder (i.e. Softrak\ALWIN) than does GL9.x, which is installed to Softrak\Ledger. It's possible GL8 is already installed at your site. Look for the Softrak\ALWIN folder.
Customer Service would be able to provide you with a link and codes for GL8.1A so that you or your Adagio consultant could install it, if necessary.
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Regards,
Softrak Tech Support