How to use neural network classifier in predict function?

I am using App designer in MATLAB R2018a. I am working on human idetification and I have trained networks with SVM and NN.

I'm using predict function for the testing. It's working with SVM but not with NN. Kindly help

This is the code. I have NN classifier in faceClassifier variable.

queryImage = imread('image.jpg');
queryFeatures = extractHOGFeatures(queryImage);
personLabel = predict(faceClassifier,queryFeatures);

It's give me error.

Error using predict (line 84)

No valid system or dataset was specified.