Paths in your API definition are not exposed
The paths in your API definition are empty and thus not exposed. This could happen, for example, if you did not have the proper access rights when retrieving the API specification file.
The OpenAPI Specification (OAS) allows the paths to be empty, but it probably is not what you want to do.
For more details, see the OpenAPI Specification.
Check that you have defined the paths you want to expose in your API.