Hi, I would assume I'm not the first to message about this, but the software to allow to auto-archive a page seems to be down. When selecting "add archive to non-dead references (optional)" is selected, I either get a full blank page, or a series of markup language. This is set at url on https://tools.wmflabs.org/iabot/index.php?page=runbotsingle&action=analyzepage.
I hope this is helpful information.
Best Wishes, Lee Vilenski