"JSON readtable error 60" after entering the AUTH code

[nhmacuk]

After entering the AUTH code from the URL after logging in after issuing spot4e-authorize as described in the steps in README, Emacs tells me:
"Contacting host: accounts.spotify.com:443
helm-M-x: JSON readtable error: 60"
Happens on macos and manjaro linux in GUI Emacs 26.3 (spacemacs config). Happened contacting Spotify from Netherlands.

[simeoncarstens]

Same here, connecting from France. Some info on this would be highly appreciated :-)
The function raising this error is spot4e-refresh.