I lost access to a collaborative world. The creator who I was collaborating with no longer has a paid account so I'm guessing this is the problem. Is there a way to transfer the world ownership to me?

Steps to Reproduce

I click on the world in the "Switch Between" menu. It only allows me to view the world. If I click "Activate world" it brings me to a page saying "Naughty naughty little hobbitses...... poking their nose where they shouldn't they had."

Operating System

Browser