I'm reluctant to delete things when it was so hard to get the items into HabitRPG to begin with due to the site's habit of ignoring user input and dying.

That being said, I ended up doing exactly what you suggested because there is no way to pause things. At this moment, HabitRPG's developers have posted on Tumblr reporting theirp rogress so I'm still using the site via a third party Android application that's been much more reliable than the website.