The following error appears on attempt to import APS package in PCP:
Package uploading failed: couldn't connect to host. (URL: https://apscatalog.com/storage/application.app.zip)
Corresponding "downloading APS package" task fails with the same output.
Privacy Proxy settings or corresponding node is off or down.
Re-check Privacy Proxy settings according to the Deploying Privacy Proxy deployment guide.
As a workaround: APS application could be imported by using the following URL: