This page asks not to be indexed

Nothing is wrong with this page. It just does not want to be in Google.

When noindex is right

Some pages should not show up in search: internal search results, filter combinations, thank-you pages, staging content. A robots noindex tag is the correct way to keep them out while still letting crawlers follow their links. It is a feature, most of the time.

When it is a problem

The same tag becomes a problem when it ends up on pages that were meant to rank. A noindex left over from a staging setup, or a template that applies it too widely, can drop a whole section of a site from search. That is why an audit reports every noindex it finds, so a person can confirm each one is on purpose.