Cloudflare ERROR SSL OR CIPHER MISMATCH Problem

Hello,
I used the PRO package on cloudflare, and today I asked to cancel the service. After I changed my plan I’m getting this order “ERR_SSL_VERSION_OR_CIPHER_MISMATCH”. Do you have any clue how can I fix it?

Thank you!

#CommunityTip ERR_SSL_VERSION_OR_CIPHER_MISMATCH