WP YouTube Lyte not showing on page

Hi,

I’m using WP YOUTUBE LYTE and it’s not showing up.
I tried to deactivate all my other plugins, but it’s still not showing up.

Here’s a link to the page:
https://watle.no/csse/lyte-test/

watle.no/csse/ is a wp-site working from that (watle.no/csse/) directory.

watle.no is another wp-site. On watle.no the plugin is working:
https://watle.no/lyte-test

Anyone have any ideas?

Thank you very much.