Image Juxtaposition Not Showing

Recently I just found one of interactive element Image Juxtaposition isn’t working on my site.
Image Juxtaposition –> https://amhmagz.com/2019/07/dumbbell-nan-kilo-moteru-bakar-kalori-di-kichijoji/

The frame element is actually there. It’s just not load properly.

Then I check other such as memory game and timeline, it works. I’m not sure what is broke because about last month ago it working perfectly.
memory game –> https://amhmagz.com/2018/01/tebak-pasang-1/

timeline –>https://amhmagz.com/2018/02/manga-time-kirara-dahulu-hingga-sekarang/

When I check H5P dashboard, I don’t see update for Image Juxtaposition. Any solution for this?

Thank you.

The page I need help with: [log in to see the link]