Domain is already used. Please try again with a different domain.

I recently deleted a project that had the aityping.app domain linked to it. Now, when I try to add the domain back, I am getting this error.

domains exist per team, not per project. i see your team (github org plan) exists. check the domains tab, it should already be listed there

Yes, I have the domain aityping.app in my organisation's domain list, but I am not able to link it to site deployment.

okay found it... deleting a project resulted in orphaned rule. will fix it at server level, thanks for pointing this out

for now i have manually deleted the orphaned rule, check now pls @Adil

It's working now. Thanks @Chirag Aggarwal