Meta-Description
Descriptions can be displayed in Google's search results. High-quality, unique descriptions can make your results more relevant to search users and can increase your search traffic.
This audit fails if your page doesn't have a description, or if the content attribute of the description is empty.
Recommendations
Add a description tag to the <head> of each of your pages.
Make sure that every page has a description.
Use different descriptions for different pages.
Include clearly-tagged facts in the descriptions. The descriptions don't have to be in sentence format. They can contain structured data.
Use quality descriptions. High-quality descriptions can be displayed in Google's search results, and can go a long way to improving your search traffic.