Link Structure Breaking

Hey all – for some reason my links aren’t working like they used to.

I have a number of sections with gallerys with sub sections.

So for example it’s https://www.MYSITE.com/gallery/ford/

When I go to that link – there are sub sections to choose from – all marked or linked with a href="2011-ford" – now that should nest off the ford – but it’s nesting off the gallery

The link structure comes up https://www.MYSITE.com/gallery/2011-ford when it should be https://www.MYSITE.com/gallery/ford/2011-ford

Any thoughts?
Thanks!