Our detectives are back with the following intel on this WordPress site
The site is using the Heaven Music Test theme by .LifeThink .
We could identify 6 plugins (there might be more) - Contact Form 7 , fwds3dcov , jQuery Lightbox For Native Galleries , Yoast SEO , Youtube Channel Gallery and Embed Plus for YouTube – Gallery, Channel, Playlist, Live Stream
YouTube Embed WordPress Plugin. Embed a responsive video, YouTube channel gallery, playlist gallery, or YouTube.com live stream (with GDPR options)