Sotts L1742 won't stop

I have a Scotts L1742 and the emergency brake doesn't engage and is preventing the clutch from disengaging?
So I can put it in gear but I can't stop it from moving. It keeps going.
Any ideas? Or I'm hoping a photo of the emergency brake assembly that is below the battery and hard to get to .
Thanks.

Sotts L1742 won't stop