Hello!
When I opened your CSV file with LibreOffice the encoding looks off. It should be UTF-8.
The rows already have a post ID. Are you planning to update listings, then?
What we can do for you is login, export listings, use the exported sheet to add one new listing (removing all the others), and then import it. If it succeeds, importing a single test listing, it shows the functionality works.
From that point, the next step is to take the ‘known working good sheet’ and to merge your data into it. Keep the columns and encoding the same, use the same process to save it, and then upload it.
GD support recommends using LibreOffice as a known quantity; Excel = ‘not good’. I have used Google Sheets successfully, too; it saves automatically into UTF-8. Be sure your file is saving in UTF-8(!important).
You can make private reply with your admin details and we can do a test as mentioned above.
https://wpgeodirectory.com/docs/core-export/
Thanks!