# Cannot add SSL certificate for exploria-escape.kr - “Hostname already exists” error
Hi everyone,
I’m having trouble adding an SSL certificate for my domain `exploria-escape.kr` to my Fly.io app `suwon-movie`.
## Issue
When I try to add a certificate using either the CLI or web dashboard, I get this error:
```
Hostname already exists on app
```
## Details
- **App name**: suwon-movie
- **Domain**: exploria-escape.kr
- **Account email**: jyg2675@gmail.com
- **Error**: “Hostname already exists on app”
## What I’ve tried
1. Removed the certificate using: `fly certs remove exploria-escape.kr`
2. The certificate list shows no certificates (`fly certs list` returns empty)
3. Tried re-adding via CLI: `fly certs add exploria-escape.kr` → same error
4. Tried adding via web dashboard → no response/fails silently
5. Re-authenticated using: `fly auth logout && fly auth login`
## Current state
- DNS is correctly configured (A record: 66.241.125.72, CNAME to suwon-movie.fly.dev)
- `www.exploria-escape.kr` can be added but stays in “Awaiting configuration” status
- `exploria-escape.kr` (apex domain) cannot be added at all
I suspect there’s a stale certificate reference in the database that wasn’t properly cleaned up.
## Requested action
Could someone from the Fly.io team manually remove any existing certificate references for `exploria-escape.kr` so I can add it again?
Thank you for your help!