Long shot answer … I am not sure if this will work.
Access database is terribly inefficient in data space management. You may try to compress the database before attempting the export. In Access 2007– “Compact and Repair database” is under the Office button – then Manage. I think it in 2003 – it is under Tools. Be sure to give a new name to the compressed database & then try the export. It will be interesting to know the final solution.
Try import into new empty Access DB.
Try export from Lotus into Access.
Try opening the Lotus 1-2-3 file in Excel and examine the data. I have received this error during an import into Access from Excel or CSV when the data has something unexpected.