It always gave me a sketchy vibe, I try to rely on the Internet Archive whenever possible.
(Some publishers whitelist their bot, since it is used for scholarly citations -- I'm not clear how a reviewer would review to an archive.is link and despite having been out of academia for a decade, old habits die hard.)
Also, how are you accessing the site? Are you sure the error stems from the destination?
I've never had what you describe happen but I have had some... interesting... errors pop up when doing OSINT in Tor.
(Ex: a SSL_ERROR_UNSAFE_NEGOTIATION when attempting to access the copy of a search warrant that was served on a state senator from a government website specifically set up to make such documents available.)