The default operating behaviour has been restored, and quick fixes have been removed.
The custom domain feature of WebsiteAI.me had to be rolled back, and a bug report has been filed with Caddy web server.

A temporary quick fix restored access to all services.
Cloudflare allows us to make these quick changes, when necessary.

Due to infrastructure setup changes to allow for custom domains for WebsiteAI.me customers, a certificate error affects other services.
Caddy web server is erroneously using a Cloudflare origin server certificate only meant for WebsiteAI.me for other services as well.