In VMware NSX-T 3.x and NSX 4.x, when NAPP were removed either through the UI or force deletion using vCenter.
When using API call: GET /policy/api/v1/infra/domains/default/groups/sites/napp/registration
A similar result may display as the following:
{"module_name" : "common-services", "error_message" : "The requested URI: /api/v1/infra/domains/default/groups/sites/napp/registration could not be found.", "error_code" : 258 }
VMware NSX-T 3.2.x and VMware NSX 4.x
This issue is usually accompanied by force deletion of the NAPP VMs, or a failure of deletion of NAPP feature from NSX UI when the cleanup process is not triggered for the stale web elements on the NSX UI.
Please consult this KB article on how to remove the NAPP feature: https://knowledge.broadcom.com/external/article?articleNumber=368795
To resolve this issue, use a REST API client to run the two following API calls, exactly as shown below, against one of the NSX managers:
Please add "X-Allow-Overwrite: true" to the header of the DELETE request if it shows 4xx errors.
Depending on where the distortion text is shown in the UI, run the following DELETE API calls matching the location.
Please contact broadcom support to get assistance in reseting the intelligence (pace-ui) plugin.