Someone needs to learn how to read the Bot Traffic page.
That is a drop in traffic specifically from Yandex bots (which includes their crawlers and other apps hosted in their DC)
Now compare it with Bot Traffic in:
* Russia: https://radar.cloudflare.com/bots/ru?dateRange=7d
* Europe: https://radar.cloudflare.com/bots/europe?dateRange=7d
* Worldwide: https://radar.cloudflare.com/bots?dateRange=7d
Dip is barely noticeable even in Russia.
Its like saying, "API requests are completely down" (and small disclaimer: only from your server, because your server is down)