How to remove this from my custom domain

i have hosted my website using custom domain but even after i already disabled and deleted the website in firebase it is still showing this. I now is trying separate hosting for my website, i want this removed. How to remove this ?

https://preview.redd.it/tgpgcqqv6age1.png?width=826&format=png&auto=webp&s=cfac768c6c151b618cd3611ae1b10ae9d48d78d5