This can be solved by changing a hidden value in the settings file.
In the event you cannot load the the Fenix Livery Manager, you can use a bypass switch in our Livery Manager settings file to allow for direct connection to the Fenix servers.
Go to C:\ProgramData\Fenix\Livery Manager and open settings.json, scroll until you see '"DirectConnection":false' and change false to true.
Beware: Direct editing of settings files is dangerous and you should limit what you change to what is directly outlined in this article.