Hi ElmerTubiera-2113,
The error "AKV 10022" suggests you have an Authorization issue trying to access the Key vault resource. Specifically, the "audience" scope set on the bearer/authorization token is expecting "https://vault.azure.net/" but incorrectly set to "https://management.azure.com/". To successfully call & invoke Key Vault CRUD operations, you may need to set additional access policies on the Key Vault resource for your appliance - suggest adding a similar access policy if you haven't already.
Here are other useful references that address similar scenarios. Hope this helps.
If issue persists, please share a redacted screenshot of your access policy and we can investigate further or engage the technical support team for help.