There was an issue determining where GeoDirectory Plugin is installed…

That error usually appears when the folder for geodirectory is named something besides ‘geodirectory’.

Check that folder and rename it, if necessary.

If we need to check, please share all the following credentials in a private reply.

WordPress Credentials
WP Admin Login URL:
WP Admin Username:
WP Admin Password:

FTP Credentials
FTP Host:
FTP Port:
FTP User:
FTP Password:

If I might ask, is there a reason you are installing GDV1? GDV2 is out and ready to go for production sites.

Just install the core plugin from wp.org and then add your membership key at GD – Extensions – Membership