Certain pages not rendering correctly

Hi

My clients website http://www.kidslondonltd.com/ was recently hacked and after sorting this out certain pages are not rendering at all.

http://www.kidslondonltd.com/models/ and clicking on any of the galleries here http://www.kidslondonltd.com/gallery/photos/ just opens up a page with HTML.

I’ve already tried deactivating plugins etc and to no avail.

Could anyone help shed some light on this please? Its an issue I just can’t get my head around.

Many thanks