Headline problem -- read all about it!

Just recompiled my game and for the first time (after dozens of recompiles), the headline is giving me a problem and I don’t know why.

The headline is "A Really Cool, Man, Cool Text Adventure for all you hep cats and bitchin' kittens!"

Error message:

Problem. You wrote ‘The headline is "A Really Cool, Man, Cool Text Adve […] you hep cats and bitchin’ kittens!"’ : but this seems to say that a thing is a value, like saying ‘the chair is 10’.

Forget it – the idiot (me) has figured out the problem. Accidentally omitted the word “story” in “The story headline.”