No ads for 2 months

Hello, I have a little problem, for 2 months I no longer receive advertising, at first I thought it was normal but it’s been a lot already, suddenly I was wondering what maybe this is?

Version 1.9.80 Chromium: 81.0.4044.138 (Official Build) (64-bit)

I turn off/on ad settings, but nothing happens after a few days