How to restore GMail functionality?

Question

gmail

Greetings. He lived on Chrome did not grieve, the day before yesterday he stopped opening 60% of the tabs.
Just don't go for them. I don’t see the logic when which sites it doesn’t open.
Reinstalled. Cleared the cache in a couple of weeks. It's a pity all the time. Does not work.
"Goes" to the site, opens a favicon, then an empty page instead of a loaded site. No page error, but just emptiness, as if the site is empty.
I checked the PC again with Casper, Antispam - everything is fine.
These penguins, of course, have nowhere to ask, so I ask the question here, where they will definitely help.
Thanks to all!

Answer 1

I don't think there is a need for a complete cleanup. There was such a problem, this tool helped.
https://www.google.ru/chrome/srt/