Can't connect client's IG biz account

Can't connect client's IG biz account

Been  using Zoho for a few months now, and all of a sudden, my client's IG account won't connect, even though I've got her set up with a business account. I keep getting the error: 

You haven't switched to a Business Profile yet.
Only Business Profiles can directly publish to Instagram.

Is this a glitch within Zoho? Or IG?