Cloudflare All-time-classic: How to fix Error code: SSL_ERROR_NO_CYPHER_OVERLAP

Welp…still no luck.

Universal SSL is off. testing on a domain like sub.domain.yx

Error:
Secure Connection Failed

An error occurred during a connection to sub.domain.xy. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the web site owners to inform them of this problem.

Any suggestions?