You might want to reach out to NCH support here: https://www.nch.com.au/support/index.html
Since the software it's crashing they will be able to help you better.
Right now the only fix is to install the current version, which uses a different database because FreeDB server does not continue as a provider.
if you have any questions you might want to reach out to NCH support here: https://www.nch.com.au/support/index.html
To register the software you will need to click on File and register software, you can also try to uninstall and reinstall the software, if that does not work, I will advise to contact technical support
FreeDB server does not continue as a provider. The new upgrades don't provide the service anymore. In this case, you can use the HTTP to access server as an alternative.
Enter the name of the CSV file containing the import or click the adjacent button to open a file browsing dialog.
A CSV (Comma-Separated Value) file contains data entries separated by a comma. Many spreadsheet applications allow the user to save entered data in the CSV format.