There's another community post with 404 debugging tips that might be helpful. Please give these solutions a try and let us know how it goes.

https://community.vercel.com/t/debugging-404-errors/437

Vercel Community

Debugging 404 Errors

Sometimes things don’t go as expected when deploying a website. If you see a 404 on your site, that means the page or resource couldn’t be found. There are...

A human should be around soon to offer more advice. But you can also get helpful information quickly by asking v0.

The project behind that domain is still active but is on a different Vercel account, it looks like you ended up with two accounts by mistake.

The other one is connected to a github account with what looks like both your first and last name, as well as a different gmail account that also has two names in it

You'll need to make a case with vercel.com/help to transfer it to your new account, or alternatively if you log into the other one you can change the domain alias away and then you're free to assign it to a project on your new account

Thanks for the clarification.

While investigating further, I checked my GitHub repositories and found that the subdomain was likely created from a deployment of a forked repository of the novatorem project. In the GitHub deployment history, I can still see an old production deployment with a URL similar to:

https://novatorem-mjyemmusyz-sudeep72.vercel.app

The repository also contains a vercel.json file that redirects the root path to the GitHub repository, which explains why sudeep.vercel.app currently redirects to the GitHub repo.

I also noticed that I previously received a “Delete my account request” email from Vercel on the same Gmail account I’m using now, which makes me think I may have deleted or created multiple accounts earlier using different login methods (GitHub vs Google).

At the moment, when I try logging in via GitHub or Google, it always redirects me to my current account, so I’m unable to access the other account that still holds the subdomain.

I’ve already submitted the Account Recovery Form with these details. My goal is simply to either regain access to the account that owns the deployment or have the sudeep.vercel.app subdomain released so I can attach it to my project under the sudeeps-projects team.

Thanks for the clarification.

While investigating further, I checked my GitHub repositories and found that the subdomain was likely created from a deployment of a forked repository of the novatorem project. In the GitHub deployment history, I can still see an old production deployment with a URL similar to:

https://novatorem-mjyemmusyz-sudeep72.vercel.app

The repository also contains a vercel.json file that redirects the root path to the GitHub repository, which explains why sudeep.vercel.app currently redirects to the GitHub repo.

I also noticed that I previously received a “Delete my account request” email from Vercel on the same Gmail account I’m using now, which makes me think I may have deleted or created multiple accounts earlier using different login methods (GitHub vs Google).

At the moment, when I try logging in via GitHub or Google, it always redirects me to my current account, so I’m unable to access the other account that still holds the subdomain.

I’ve already submitted the Account Recovery Form with these details. My goal is simply to either regain access to the account that owns the deployment or have the sudeep.vercel.app subdomain released so I can attach it to my project under the sudeeps-projects team.