More likely than not you have some sort of VPN/go incognito/ad blocker/etc. installed. 99+% of the time, that's the reason for being unable to open a gift link such as those provided by the Wall Street Journal.

Alternatively, it may be because you're located outside the U.S.

Screenshot just now after I opened this link [I am in the U.S.]: https://imgur.com/a/jXXilIA