HTTPS for the Awesome Flickr Gallery

Hello,

Can anyone here please tell me if I am using HTTP instead of HTTPS, will I even be able to use the Awesome Flickr Gallery?

When I click on the “Grant Access” button in the gallery Default Settings, I get this error: Oops! Flickr can’t find a valid callback URL.

Thank you,

https://www.ads-software.com/plugins/awesome-flickr-gallery-plugin/