Website eigen.tuxfamily.org not reachable

It seems like the issue is back. I can't reach the website via home or mobile internet. Based in Berlin, Germany.

original: #2665 (closed)

Pinging eigen.tuxfamily.org [2a02:2178:1000:201::4] with 32 bytes of data:
Request timed out.

Ping statistics for 2a02:2178:1000:201::4:
    Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),