Librem Tunnel credentials: tunnel_account API now returns null

Hello,

I’ve been using OpenVPN on my Windows 10 computer.

As mentioned in the docs, I use https://librem.one/api/v1/user/tunnel_account to get my credentials. But at some point recently (a few weeks ago, possibly), the API started returning the following:

{
    "tunnel_user": null,
    "tunnel_password": null
}

Has the API just stopped working, or has it been deprecated?
In the second case, where can I find my Librem Tunnel credentials?

Assuming that you are logged in to librem.one in the browser that you are using to access that api, I would formally contact Purism support on support@puri.sm