Meta Business Suite Connection Fix

I'm seeking an expert to resolve a connection issue I'm facing with my Meta Business Suite.

Specifics:
- My Instagram account is linked to a Facebook account that no longer exists.
- I am unable to access or manage both accounts together on Meta Business suite due to this issue.
- Unable to set up shop due to the connection issue

Ideal Skills:
- Proficient in troubleshooting Meta Business Suite issues
- Experience with Instagram and Facebook account management
- Ability to rectify account connection problems

Please bid if you can resolve this issue efficiently. Thank you.