node.js – Node JS TypeError: Cannot read properties of undefined (reading ‘sort’) at Customvision

I make a Tutorial for Azure with customvision and Node.js.
Link to tutorial: github.com/Azure-Samples/rock-paper-scissors-customvision

I have gone through the tutorial several times and always get the same error.
Also I have taken the finished code and adjusted the configuration.
The images arrive in my customvision predictions.
However, the program hangs afterwards and I get the following error:
TypeError: Cannot read properties of undefined (reading ‘sort’)

Does anyone have a solution?