Please revoke access to Tagger application and re-authenticate. To do so, please refer to the following steps:
- Open Facebook
- Navigate to Settings
- Scroll to Security: Business Integrations
- Search for "Tagger" & tap to select
- Scroll to Remove Business Integration
- Tap "Remove" to revoke access
Once you have completed these steps, navigate to creator.taggermedia.com and attempt to login in and re-connect Instagram Business account (via Facebook) in settings.