Cant view videos on ssl site

Hi
I cant view youtube videos on this site – getting this message:
The page at ‘https://alltogether.co.nz/heritage-qa/#wp-video-lightbox/0/’ was loaded over HTTPS, but requested an insecure resource ‘https://www.youtube.com/embed/J65vd2aItYE?rel=0&autoplay=1’. This request has been blocked; the content must be served over HTTPS.

Is this something you can help with – or server host?
I dont get the option to add the URL – just the ID in the shortcode.

Thanks

https://www.ads-software.com/plugins/wp-video-lightbox/