The domain markitdown-production.up.railway.app does not appear on your account. Your account only has the "api" service in the "markitdown-backend" project with the domain api-production-977f5.up.railway.app. We are unable to look up or share details about which account owns a particular Railway-generated domain, and we cannot decommission services on other accounts. If you previously had another Railway account (perhaps with a different GitHub or email login), try signing in with those credentials to locate and manage that service.

我尝试了但是我确实没有其他的账号啊

We can confirm your account only has one workspace with the "api" service in "markitdown-backend", and the domain markitdown-production.up.railway.app is not associated with it. We're unable to look up which account owns a Railway-generated domain or decommission services on other accounts, so there isn't further action we can take here. Also, please note we can only provide support in English going forward.

Thank you for the automated response. However, I am absolutely sure I do not have any other GitHub or email accounts associated with Railway.

This active zombie service (markitdown-production.up.railway.app) is using my exact project name and routing, which raises security concerns for my branding. Could a human staff member please look into this or escalate the ticket? Thank you!

That address is an automatically generated Railway domain, assigned to whichever service first deployed under that name, and it isn't linked to your project or account. We aren't able to reassign it or share details about the account that holds it. If you want to lock in a specific name for your own service, adding a custom domain is the reliable way to do that.