http still on https site

Hey

I have just moved the site from http to https, which has meant updating all internal links – those that are http, either to https or without it.
All the links should be uptodate, but there are problems on https it breaks. If I make a total cache, it’s fine for some time, but goes back again.
It looks like the wordpress core files still are http. When using development toll on chrome and under network, many of the css or js files still have http.
All the http has bin updated with Velvet Blues and site, address in wordpress.
It’s only when I deactivate W3 total cache it works.

The page I need help with: [log in to see the link]