When you run into a 404 error, it helps to capture the exact URL and time it...

https://www.bookmarkingvictor.win/when-users-hit-a-404-error-it-s-helpful-to-capture-the-exact-url-and-time-to

When you run into a 404 error, it helps to capture the exact URL and time it happened. This info can make tracking down the issue much easier