Missing title and description from Google, what's the matter?

Question

Google

For no reason, the title and description disappeared from the search results. The position is stable 1, but for some reason the main page does not have a title and description, as a result, the site domain just hangs and that's it.
The last indexing of the main page was a week ago. What is the trouble is not at all clear ... How can you find out what the trouble is, what to look for?
Through the seach console, I checked the page indexed there in the title and description code in place ...

Answer 1

Perhaps you have micro-markup that Google picked up, but it is not filled out or filled out incorrectly. It's also possible it's a Google glitch. Check out the "view like google" page. If there is no micromarking jamb and Google does not see problems on the page, then it is probably a Google glitch or at the time of the visit by the crawler the server glitched and did not give the necessary information.