Getting Error of Ads.txt After Shift In Cloudflare

Recently i have added Two Website In Cloudflare Which is [https://www.sandeephub.in/] and https://www.firstseotool.com/ . But After Some time later. My Ads.txt Is Not Found In Website. also i My Revenue is losing in AdSense. How to fix and How to add. When i am checking in google its show 404 Error and Not founds Ads.txt