Button with no accessible name
What it means
A button with no text, label or value is announced as "button" and nothing more, so nobody using a screen reader can know what it does before pressing it.
How to fix it
Put text in the button. Where the design is an icon only, add aria-label saying what the button *does* ("Close dialog", "Add to basket") and keep the icon decorative. WCAG 4.1.2.
Finding it in CrawlStat
After a crawl, open Issues and pick Button with no accessible name. 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_button_without_name.