Hello,
First of all, thank you for your purchase.
Thank you for letting me know of the issue with custom domains, I just fixed this in the latest plugin update: v2.0.2.1
However, I read that you wish to import also older content from Medium sites. This is unfortunately not possible at the moment using the Mediumomatic plugin, because the Medium API is not offering this functionality.
If you wish to import older content, I can recommend direct web scraping, using another plugin I created – Crawlomatic. Please check it here: https://1.envato.market/crawlomatic – it can be set to crawl websites for links and to scrape content from the links found on the targeted websites.
Regards, Szabi – CodeRevolution.