My IG keeps disconnecting, and I can't reconnect because our FB page is one I don't have access too.

My IG keeps disconnecting, and I can't reconnect because our FB page is one I don't have access too.

This is a bit convoluted, but our Business's FB page is owned under our founders personal FB account...not a business account.  Is this why our IG is constantly disconnecting?  How do I get around this?