Why is the plugin’s Create New Feed page blank?

How to solve the Create New Feed page blank issue?

After installing the latest version, clicking on the ‘CartProductFeed / ExportFeed’ option in the menu loads a blank page.

This behavior is consistent with a firewall, security feature or antivirus program blocking connection to our servers. Please ensure the plugin/software is disabled, or open connections to https://shop.exportfeed.com