Thanks for PM'ing me your url. It helps when I can see the site. It looks like all your posts are "editorials"? If so, they don't have urls, and therefore parse_url returns a warning.
However, it's just a warning and should not effect the import.
When the import is complete, we can fix the editorial urls quite easily in phpMyAdmin, but first you need to finish the import. What other errors are you getting?