Our website from wix is pointing to cloudflare. A records and CNAME has been updated with proxy status set to DNS Only. We are able to access www.untangled.com.au with no problems. When we try to go to https version this error is coming up ERR_SSL_VERSION_OR_CIPHER_MISMATCH. We have created page rules to always have any version of the website open in HTTPS and have set the security settings and certificate to Flexible. Please help.
Welcome to the Cloudflare Community. 
That’s never a good thing. In addition to leaving your site insecure, that setting is well known for causing problems.