“Domain is not correct” Error when importing AliExpress products

Hi there. I am receiving a “Domain is not correct” error when importing AliExpress products with the Dropshipping and Fulfillment for AliExpress and WooCommerce Plugin.

I have tried all of the options listed in your guide:
1. It’s blocked by a firewall plugin (it does not appear to be)
2. REST API is disabled (it is not disabled)
3. Your site is not running on HTTPS (it is running https)
4. It’s blocked by your host’s firewall (worked with my host to update this)
5. You enter an incorrect domain (it does not appear to be incorrect)
6. Required plugin is not activated (it is activated)

I would appreciate any assistance!