Error with https://coder-programming.cn/coder-java-interview

exception = HTTPSConnectionPool(host='coder-programming.cn', port=443): Max retries exceeded with url: /coder-java-interview (Caused by SSLError(SSLCertVerificationError(1, "[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'coder-programming.cn'. (_ssl.c:992)")))