Fetching token from Management App results in no_tenant 500 error

I am using Auth0 as my SSO provider and am interested in adding/updating/deleting users in Auth0 through my API, as well as managing their roles. I’ve created an app called ‘User Administration’ which is connected to the ‘Auth0 Management API’, the API that existed in the tenant when I set up Auth0. The app has 9 Client Access permissions to the API; all the :users permissions, all the :role_members, and the create:user_tickets permissions. However, when I try to fetch Client Credentials to allow my API to created/update users in the Auth0 API through an M2M token, the response I get back is a 500 error.

Here’s the POST request:

{
    "client_id":"<client ID from Administration App>",
    "client_secret":"<client secret from Administration App>",
    "audience":"https://dev-12zmndtub68y4114.us.auth0.com/api/v2/",
    "grant_type":"client_credentials"
}

Here’s the 500 response:

{
    "error": "no_tenant",
    "error_description": "This application is not associated with a tenant. Please contact support."
}

The URL is not a CNAME or any special configuration, I’m working just off of what’s provisioned in Auth0. Research through AI indicates my tenant may be corrupted. WHen I go to the Quickstart of my App I get an error toast: “Error! Unexpected failure trying to fetch apis, try again later.” and in the Test tab of the Auth0 Management API, I get an error toast: “Error!API Error. Please contact support if the problem persists”.

Could this tenant be investigated for what may be the problem? I’m trying to host a POC and I’d rather not start over with a new tenant or account. I’m on a free plan because I’m looking to test a few items before committing to a subscription.

Thank you very much.