CloudFlare flexible SSL and xenforo

today I added Cloudflare Flexible SSL to my website, and it works just fine everywhere except my XenForo forum. Here is the google console: index.php:15Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure script 'http://ajax.cloudflare.com/cdn-cgi/nexp/dok3v=e982913d31/cloudflare.min.js'. This request has been blocked; the content must be served over HTTPS.(anonymous function) @ index.php:15 index.php:27Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://*********/forums/css.php?css=xenforo,form,public&style=1&dir=LTR&d=1466613107'. This request has been blocked; the content must be served over HTTPS. index.php:29Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://*********/forums/css.php?css=bb_code,moderator_bar,node_forum,n…t,profile_post_list_simple,sidebar_share_page&style=1&dir=LTR&d=1466613107'. This request has been blocked; the content must be served over HTTPS. index.php:32Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://*********/forums/css.php?css=uix,&style=1&dir=LTR&d=1466613107'. This request has been blocked; the content must be served over HTTPS. index.php:37Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://*********/forums/js/audentio/ad_styler/2.1/stylesheets/colpick.css'. This request has been blocked; the content must be served over HTTPS. index.php:38Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://*********/forums/js/audentio/ad_styler/2.1/stylesheets/styleit.css'. This request has been blocked; the content must be served over HTTPS. index.php:42Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css'. This request has been blocked; the content must be served over HTTPS. index.php:45Mixed Content: The page at 'https://*********/forums/index.php' was loaded over HTTPS, but requested an insecure stylesheet 'http://fonts.googleapis.com/css?family=Open+Sans:400,700|Lato:400,700'. This request has been blocked; the content must be served over HTTPS. Also on CloudFlare page rules I added Force HTTPS