It may lead to a 404 error page … as represented in 35-Across Crossword Clue

 The answer to the crossword clue "It may lead to a 404 error page … as represented in 35-Across" is BROKEN LINK.

A broken link is a hyperlink that no longer points to a valid web page. When a user clicks on a broken link, they will typically be presented with a 404 error page, which means "Page Not Found".

The clue is a bit of wordplay, as the word "broken" can also refer to something that is damaged or incomplete. So, the clue is saying that a broken link is something that is not working properly and may lead to a 404 error page.

Here are some other possible answers to the clue, depending on the specific crossword puzzle:

INVALID LINK

NON-EXISTENT LINK

DEAD LINK

404 PAGE

I hope this helps!