ML Deformer gives Error while Training the Model

Output Log:

LogNearestNeighborModel: Error: At least one section is required. Please create a section using the ‘+’ button.
LogMLDeformer: Display: Training duration: 00:00:00 (HH:MM:SS)
LogSlate: Window ‘Training Results’ being destroyed
Message dialog closed, result: Ok, title: Training Results, text: Training failed!
There is a python error, please check the output log.

You need to add a section first. The UX is pretty bad in this model. We rewrote it for 5.6 and is much better now. I would advise to try the Neural Morph Model instead. The new model will also be inherited from that so shares the same UI.