Is the Internet Archive OPDS down?

[yesseruser]

Hi, when loading the Internet Archive list in Foliate, it says loading for a long time and then says "undefined".
When trying to open the URL in a web browser, only a blank page appears. I'm not sure how this is supposed to look, but the other lists work fine.
Am I doing something wrong or is the server down? I tried going to archive.org and that works normally.