First of all, thanks for having set up this plugin because it is really useful for creating bookable products.
The problem I have at the moment is when I have the plugin activated, my not bookable products cannot be added to the basket and it doesn’t show their prices. Please see the 2 following pictures, the first on top it’s when the plugin is activated
I see only one picture in your link so I don’t see what’s wrong. It’s a variable product so make sure the “Bookable” option is not checked on both the parent product and the variations (and make sure to uncheck the “Make all products bookable?” in the product settings before).