크롬 개발자도구에 http://contents.cosmosfarm.com/wordpress/kboard-comments.js?ver=4.0의 mixed 오류가 발생합니다.

어떻게 해결해야할까요?

Mixed Content: The page at 'https://ijk.or.kr/wp/%ed%95%a8%ea%bb%98%ed%95%98%eb%8a%94-%ec%9d%b8%ec%9e%ac%ea%b7%bc/%ec%82%ac%ec%a7%84-%ea%b0%a4%eb%9f%ac%eb%a6%ac/?uid=3320&mod=document' was loaded over HTTPS, but requested an insecure script 'http://contents.cosmosfarm.com/wordpress/kboard-comments.js?ver=4.0'. This request has been blocked; the content must be served over HTTPS.