Using Windows on all computers i've tried. Also tried on Android with the same results. It may be worth noting other features of the site don't work for me. IE i am unable to login from the "Guest" tab in the top right of the fourm home page, it seems to be a dead link.
Additionally I am able to view and search for some other covers with no issue.
It has been like this for weeks, i assumed it was an issue with the site but now seems to be an issue on my end.