Can't setup custom domain

[KangJL]

@NaweGa

Please remove the custom domain from your account at bikkuri.link before you can host it on InfinityFree.

Do that. Check below thread if you have more issues.

I have pointed my nameserver to infinity nameserver and I can't add using custom domain

I can’t create account for my website. I have already pointed by domain to infinity nameserver and have deleted my previous account from old hosting service. But It gives error message “The selected custom domain is already in use on InfinityFree or a different free hosting provider. Please remove the custom domain from any other free hosting accounts.”