Visiting site triggers warning

If to try visit 5yo.panty.shot.valdikss.org.ru using tor (TorBrowser) then it triggers warnings for me

[warn] I'm about to ask a node for a connection that I am telling it to fulfil with neither IPv4 nor IPv6. That's not going to work. Did you perhaps ask for an IPv6 address on an IPv4Only port, or vice versa?

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