What is the name of the domain?
xn–v42bw4jivao35c.kr
What is the error number?
Pending Validation (Error)
What is the error message?
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
What is the issue you’re encountering
Issuing ssl certificates
What steps have you taken to resolve the issue?
delete the domain and re register
dns txt add
enable after Universal SSL is disabled
Was the site working with SSL prior to adding it to Cloudflare?
No
What is the current SSL/TLS setting?
Flexible
What are the steps to reproduce the issue?
Add domain to Cloudflare, try to set up Universal SSL.