Why did Adsense ads appear once a day?

Question

Google Adsense

Hello, does anyone know why Google Ads began to appear once a day? There are no blockings, only a notification was sent that on the password recovery page Advertising is disabled because there is no content, although there have never been ads there anyway, I do not use automated ads. Only a few blocks were installed from them, it used to appear constantly, now I see a maximum - once a day, in other cases an empty block. Ctr was usually 0.5-4% , what can this mean? Blocked for 300 rubles or just buggy?) I
wrote in support - they do not answer naturally.
Website traffic 1000