Error on https sites in ubuntu?

Question

ubuntu

When visiting some sites from chrome in ubuntu, I see the error Your connection is not private. With the date on the PC, everything is in order. The error is only on some sites, and it seems always on different ones. In particular, on the website of Sberbank and Lenta.ru. Fox is fine.
What can be wrong?
UPD: Version 53.0.2785.143 Built on Ubuntu , running on Ubuntu 16.04 (64-bit)

Answer 1

Ubuntu version? Chrome version? Certificate details?
Telepaths on vacation.

Answer 2

Judging by the version, this is chromium. In the penultimate update, some certificates did not work (I have amazon, yandex). You either need to update or roll back.