As it says in my console:
(index):1 Mixed Content: The page at 'https://www.weareb.co.uk/' was loaded over HTTPS, but requested an insecure font 'http://1pr12c1rpyze15f8us2uz5xn-wpengine.netdna-ssl.com/wp-content/uploads/2017/09/YoungSerif-Regular.woff'. This request has been blocked; the content must be served over HTTPS.
So the problem is your website is on https but it is trying to serve the font from "http://1pr12c1rpyze15f8us2uz5xn-wpengine.netdna-ssl.com/wp-content/uploads/2017/09/YoungSerif-Regular.woff"
which is not https.
I recommend you login to your wordpress admin panel from here: https://www.weareb.co.uk/wp-admin/
Make sure the url is in fact "https://www.weareb.co.uk/wp-admin/" with https while you are in your admin panel. Then delete the webfonts in lay options -> webfonts. Then reupload them. If it doesn't work then, you might still have to re-select the newly uploaded fonts for your textformats.