Links with empty anchor text
What this means
One or more links on the page have no anchor text at all, so neither a crawler nor a screen-reader user learns anything about the destination.
How to fix it
Give every link descriptive text; for image links, put the description in the image's alt attribute.
Fix effort
This check needs review: the change can be drafted for you, but a person has to approve the wording or choose the target before it ships.
Authoritative source
https://developers.google.com/search/docs/crawling-indexing/links-crawlable
Find every page this affects
CrawlX runs this check — and 161 others — across your whole site, ranks the findings by estimated impact, and opens the fixable ones as pull requests. Free for 500 URLs.