Once i enable cloudflare on my website its down

i receive this message

This site can’t provide a secure connection
uses an unsupported protocol.
ERR_SSL_VERSION_OR_CIPHER_MISMATCH

after i disable Cloudflare website is up

please help and advice

Thanks

What domain (actual website address) are you running into this problem on?

Classic one for this error would be attempting to run on multiple levels of sub-domains.

Cloudflare’s free Universal SSL covers only the domain and one level of sub-domains.

The text that was turned into a link (ERR_SSL_VERSION_OR_CIPHER_MISMATCH), from your own post, explains this:

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