Rrequest about - Error(s) blocking validation

Dear Sir or Madam.I got the following unexpected response when trying to retrieveURL:https://www.geps.or.krMeassgaes:500 Can't connect to www.geps.or.kr:443 (SSL connect attempt failed error:1414D172:SSL routines:tls12_check_peer_sigalg:wrong signature type)If you made recent changes to your domain name (DNS) configuration, you may also want tocheck that your domain records are correct, or ask your hosting company to do so.It's hard to understand just by reading at the message above.Would you mind to explain what is the messages about more specifically or perhaps somesolutions that you could give?Thank you so much for your help.Best regards,Jon