[BUG]error: unable to generate a certificate for the domains [example.com]: acme: error: 400

Error message (from log):

runtipi-reverse-proxy | 2026-08-21T07:48:14Z ERR Unable to obtain ACME certificate for domains error="unable to generate a certificate for the domains [example.com]: acme: error: 400 :: POST :: https://acme-v02.api.letsencrypt.org/acme/new-order :: urn:ietf:params:acme:error:rejectedIdentifier :: Error creating new order :: Cannot issue for "example.com": The ACME server refuses to issue a certificate for this domain name, because it is forbidden by policy" ACME CA=https://acme-v02.api.letsencrypt.org/directory acmeCA=https://acme-v02.api.letsencrypt.org/directory domains=["example.com"] providerName=myresolver.acme routerName=dashboard-secure@docker rule="Host(example.com) && PathPrefix(/)"

Steps to reproduce:

1. Clean Install of Runtipi by: curl -L https://setup.runtipi.io | bash
2. Settings/Settings/General Settings/Enable guest dashboard: activated
3. Settings/Settings/General Settings/Timezone: "Berlin" selected
4. Clicked on Update Settings
5. Restarted by: sudo ./runtipi-cli restart
6. Settings/Logs/: found error message (see above) by looking for red entries

Expected behavior:

There should be no error message in a clean new install (my guess).

Platform:

• OS: Ubuntu Ubuntu 24.04.4 LTS (GNU/Linux 6.8.0-138-generic x86_64)
• Tipi Version: v4.10.1

Message

Hello, I thought, there should be no error message in a clean new installation of runtipi. At this time there are no apps added to runtipi. Only added some app stores and enabled the guest dashboard. Thanks, Tom

PS I like Runtipi very much, using it as a home server, trying next to expose some apps into the internet.