Hi Alison,
Is it possible to create a temporary login so I can see what’s going on? If so, you can add it here as a “Private Message”.
I’ve had 1 person mention the colibri theme issue last year – https://appfinite.com/topic/oasis-theme-1-0-1-1-0-7-requires-a-parent-them-called-colibri/ but I’ve never had that happen on any of my installs.
I’m sure I can figure it out and get it fixed, I just need to see why it’s happening.