Hi @Anonymous , from the troubleshooting guide:
"Consent between first party application '{applicationId}' and first party resource '{resourceId}' must be configured via preauthorization - applications owned and operated by Microsoft must get approval from the API owner before requesting tokens for that API. A developer in your tenant may be attempting to reuse an App ID owned by Microsoft. This error prevents them from impersonating a Microsoft application to call other APIs. They must move to another app ID they register in https://portal.azure.com."
Please check your App IDs and make sure they are not reused. Also, please review this thread for more information on how to fix this.
Please let me know if you have any other questions and I can help you further.
If this answer helped you please mark it as "Verified" so other users can reference it.
Thank you,
James