How to connect Instagram account to Facebook for advertising?

Question

Instagram

I want to promote on Instagram, I go through FACEBOOK, it says the wrong account, like already linked, but there is no other account, please help

Answer 1

So someone linked to another account

Answer 2

Puma Thailand is right, most likely someone linked your account to link it to their fb just unlink in the linked accounts section and switch temporarily from a business account to a personal one, then go back