Please follow the following to fix this:

Go to this page, Scroll to the bottom of the popup, and click "Remove app"

Go ahead and confirm It

Then go to this page and Remove the Ocoya app from there too If It shows up, but usually it is just at Business Integrations

The next thing Is to go to Ocoya and disconnect it from the platform. Click Socials, then head over to the Facebook/Instagram you need to delete, click the little three dots as shown in the picture, and delete, go ahead and reconnect

Go to your Instagram settings, go ahead and click Account type and tools and click Switch to Professional Account

Choose Business

Go to the Page, click Settings, then Linked accounts and Disconnect the Instagram account from the page and connect it again