The selected custom domain is already in use on InfinityFree. If this is your custom domain, please remove it from any other accounts first
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The old hosting account connected to this domain was deleted, but it looks like the domain is still linked to it in your system.
Please help me unlink or release tiaculture.com so I can use it to create a new account.
I can see that the domain name was added to an account with us shortly after it was registered last July, and it has been there without interruption ever since.
That account is definitely not deleted. Deleted accounts will release their domains (it’s technically impossible for them not to), but that simply does not apply here.
Please try to remember which email address you used for that other account. You should be able to use it to access your previous account and manage your website from there.