ARIA reference points at nothing
What it means
An aria-labelledby or aria-describedby on these pages names an element id that is not on the page. The reference is silently dropped, so the element ends up with no name at all, which is worse than if the attribute had never been added.
How to fix it
Check each id actually exists and is spelled identically; they are case sensitive. This usually follows a template change that renamed or removed the element being pointed at. Watch for ids that only exist after JavaScript runs, which is too late for some assistive technology.
Finding it in CrawlStat
After a crawl, open Issues and pick ARIA reference points at nothing. Click Show all in Pages to filter the Pages table to the affected pages, or Export affected to hand the list to whoever owns the fix. Audit ID: a11y_broken_aria_reference.