If an Instagram account is switched from a Business type to Creator type and then back to a Business type, Facebook settings may require a native review.
It's very easy to check...
Navigate to this page in Facebook.com
Open your connected Facebook page
Click Professional dashboard in the left menu, and then click Linked accounts.
If you see a button labeled 'Review Connection', click on it.
Follow the steps provided by Facebook for the review process
Once the review is complete, return to Hopper HQ and refresh your Instagram and Autopost account connections. You can find this option in your Account Settings.