Did you enter your login details for pluralsight in Settings > Internet Downloads > Advanced > Extractor logins > Site Credentials
If you did and are still having issues then please provide debug logs as per https://www.jaksta.com/support/windows/technical/jaksta-media-recorder/how-to-generate-debug-logs-6000009063
Please check with logs ,thanks.
I am trying to download video from below url. but Jaksta media recorder show "url is not support", so would you please have a look this issue? Thanks