Missing headers

Hi. site is sweetwilliamflorists.co.uk for some unknown reason the headings keep not being visible (although the link is still there, so it's more like the font has turned to white? visited state colour perhaps??) when using Chrome and clicking refresh. It seems a sporadic problem smetimes they appear sometimes they dont but clicking refresh makes them disappear it seems. I dont know if its a problem with googlefonts / @font or what. I'm using the dancing script font. Any ideas??