Thanks for the reply and yes, the post type title
I’ll check the theme, which is Atelier
Brilliant thanks so much Takayuki
Fixed
There was a folder called cart in the WooCommerce folder in the theme that must have appeared in the during the last update that I deleted and it works
It does work with a different theme, thanks for the suggestion.
What’s the best thing to look for in the theme files to change to make it work?