I see an error on the site in the browser console:
Uncaught (in promise) Error: Could not find module `discourse/lib/posts-with-placeholders` imported from `discourse/plugins/discourse-journal/discourse/initializers/journal-post`
I believe this comes from Journal Plugin, which is currently listed as broken — if you remove that plugin, I believe the components should start working again.
You can confirm it’s a plugin issue by using safe mode to disable plugins https://forums.ffjdr.org/?safe_mode=no_plugins — when viewing the site this way the components appear to work.