Since September 13, some sites in the opera began to be displayed as an empty white screen, either blocking completely, or hiding all the elements of the site.
I checked the same sites in other browsers - everything is ok. I started turning off extensions in Opera one by one to determine the culprit. And, the sites started showing up again after disabling Ghostery.
Wherein,
in the last month, I definitely did not make any settings in this extension. A very good extension that I have been using for many years, but it looks like I will have to abandon it.