Website partially unreachable (on IPv6 or without www)

[pacien]

The website of the project seems to be partially down. Visiting
https://bumblebee-project.org/ without www. results in
ERR_ADDRESS_UNREACHABLE.

Both domains seem to point to some unreachable IPv6 address.
Without www., the IPv4 address is missing.

❯ nslookup www.bumblebee-project.org 8.8.8.8
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	www.bumblebee-project.org
Address: 149.210.147.206
Name:	www.bumblebee-project.org
Address: 2a01:7c8:aab0:335:ae97:e3ff:802f:e551

❯ nslookup bumblebee-project.org 8.8.8.8
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	bumblebee-project.org
Address: 2a01:7c8:aab0:335:ae97:e3ff:802f:e551

❯ curl -6 bumblebee-project.org
curl: (7) Failed to connect to bumblebee-project.org port 80 after 3077 ms: No route to host

[Sedovex]

I can't access the website neither. Where can I actually download the tarballs from?