Cloudflare default certificate cannot be automatically renewed

What is the name of the domain?

longsays.com

What is the error message?

This certificate pack has reached expiration and has been removed from the Cloudflare network. Please purchase or upload a new certificate.

What is the issue you’re encountering

Cloudflare default certificate cannot be automatically renewed

What steps have you taken to resolve the issue?

Changing the certificate authority, disabling universal certificates, and enabling universal certificates

Was the site working with SSL prior to adding it to Cloudflare?

Yes

What is the current SSL/TLS setting?

Full

What are the steps to reproduce the issue?

Use DigiCert’s certificate and wait for it to expire

Support ticket id [01215632]
There is no default universal certificate, which may require manual repair by support personnel​