DNS Records not working

Hi, I transferred the domain to Cloudflare. Domain: kodesoal.com

I created a TXT record to verify my own domain (Custom domain for Firebase), but I got issue. I checked in https://www.whatsmydns.net, DNS is not working (not found). Please help me to solve this issue, thank you.

Your domain appears to have lost the nameservers during the transfer. You need to contact support, so that they re-set them manually.