To start importing products you need first to authorize your site in the Alidropship Google Chrome extension.
Click on AliDropship extension icon and Log in.

If the authorization does not work or it works but you still can't import products, take the following actions:
1. First and foremost check the Permalinks in General settings of your Wordpress. They must be set to POST NAME only.

2. Make sure that you are using the latest versions of AliDropship plugin, theme and AliDropship Google Chrome extension.
3. Go to your WordPress admin area -> Plugins -> Deactivate ALL third-party plugins, especially security plugins like WP Cerber, All-in-one Security, etc., cache plugins like Autoptimize, etc.
4. Clear the cache of your Google Chrome browser or reinstall the Chrome browser.
5. Deactivate ALL third-party extensions (for example AdBlock, VPN extensions, etc.)