I’m having the same problem when trying to update the GeneratePress Premium Plugin
Update failed: Download failed. Unauthorized
As advised by Fernando I tried the article https://docs.generatepress.com/article/authorizing-site-urls/
This doesn’t seem to work for my staging site. As advised in the article I went to Purchase History-> View Licenses-> Manage Sites. The staging site URL was already added. I even deactivated it and added it again.
For better or worse however, I tried the advice in the article on my live site and it DID work. Can I get some help here? I’m relatively new and I’m not sure how to get the update on the staging site.
Thank you!