SSL certificate failure error

Renewal may fail due to Let's Encrypt's 64-character URL limit. If the branch name or environment URL exceeds this limit, the certificate is rejected. Additionally, ownership verification, known as the Challenge step, ensures the requester's entitlement to the certificate.

For more information about long URL SSL provisioning can be found here - https://fixed.docs.upsun.com/domains/troubleshoot.html#error-provisioning-certificates

And more information about ownership verification can be found here -
https://fixed.docs.upsun.com/domains/troubleshoot.html#ownership-verification