Font quit working on blog titles

My Google font, font-family: ‘Nothing You Could Do’, cursive;, has suddenly quit working on my theme for my blog pages.

It was a font that came with the Themeforest theme (Strings), and worked just fine until recently.

I haven’t made any change recently except for activating Jetpack, and when I deactivated it, that didn’t fix the problem.

Here is my blog page link: http://www.murderandintrigue.com/blog/.

Any ideas?