To use the Instagram for Business modules, you must have a Facebook account that can perform admin-equivalenttasks on a Facebook page that has been connected to the Instagram account you want to access and an Instagram Business account.
Basically, you need:
Instagram business account
Instagram business account that is linked to the Facebook Business page
To have a personal Facebook account that is an admin of that linked Facebook page
Do you fufill all three criteria for using the integration? Please show screenshots showing that you fufill each criteria.
Regards, Msquare Automation - Gold Partner of Make