In order to connect your Instagram to the StreamLadder Content Publisher, it is mandatory to have connect your Business Account to a Facebook Business Page. This is a crucial requirement from Meta/FB API.
This is how you link your Instagram to a Facebook page:
Go to your Instagram profile and tap Edit Profile.
Scroll down and look for the Public business information section.
Tap Page and select a Facebook Page to connect. If you don’t have a Page yet:
Create a New Facebook Page through Instagram during this process.
Confirm the connection to link your Instagram and Facebook accounts. Linking enables access to more features and integrations with third-party tools.