Sounds like the recipes aren't quite set up correctly.
If you took the recipes out of the demo project, it's possible that their parameters aren't compatible with the latest version of the plugin, only with the version in the demo. I'd made several adjustments to how recipes worked in the last few updates.
Try making a simple recipe with only two ingredients. If you continue to get an error, take a screenshot of the console, so I can see where the error is coming in.