pop-up submissions

Hi all, I'm brand new here and have joined because I am interested in entering Pop-Up Submissions. I don't see any information about how to enter on the Litopia colony website. Does it still exist? If so, could someone please share the link on to how to submit. Many, many thanks. Sally

I posted this thread in Chase's Discord related room, though it's wasn't quite the right place. I've tried to complete some pop-up submissions yesterday and today and found that on pressing "Send", a spinning arrows of nowhere go .... exactly that: nowhere. They spin and spin and spin ad...