In order to use the import feature you need to make sure your browser does allow cookies to be saved.
Cookies can be blocked from multiple reasons, Chrome browser settings, block extensions, firewall settings and these are only part of the reasons.
In this guide I will guide you on how to enable the cookies in your browser.
On your computer, open Chrome.
Open a new tab and paste this URL -→ chrome://settings/content/cookies
From here, Turn on cookies: by turn on the "Blocked" switch.
Instead, It should show "Allow sites to save and read cookie data"
Make sure your settings are like the image below
Still having cookies issue?
Open a new tab and paste this URL chrome://extensions/
This action will open your installed chrome extensions list, check which extensions might block cookies and turn them off.