I am using Mathematica 15. I've been following Elementary Introduction to the Wolfram Language, and I reached chapter 11 String and Text. I tried WikipediaData["computer"] in the exercise notebook and it worked just fine. But when I tried it on the desktop Mathematica 15 app, it no longer worked like that. It returned {"Title" -> "computer", "Language" -> <|"From" -> "en", "To" -> "en"|>}["Title"]

I have run PacletFind["WikipediaData"], it says the paclet version is 14.3.0, Description:Missing[NotAvailable]

I have run PingTime["www.wikipedia.com"], it says Failure, No ping echo received from host www.wikipedia.com within the \specified timeout

I have run URLRead["https://www.wikipedia.org", "StatusCode"], it says 200.

I have run $Failed === WikipediaData["computer"], it says False

I have run PacletDataRebuild[], but it doesn't seem to have any outputs and I don't think it does anything.

I have run Import["https://en.wikipedia.org/wiki/Computer", "Plaintext"], and it returns the whole wiki page as expected.

Am I doing something wrong? Is my paclet corrupted or obsolete? Do I have to reinstall the whole Mathematica 15, or is it just a bug?