I built a simple feed forward network, but it predict almost the same value for all test sample. I fine-tuned many parameters, the prediction are almost the same. Hope to hear some suggestions！

I am makinga Neural Network for a stomach tissue dataset. The idea is that I want to optimize parameters for my model, so I run KerasClassifier to change parameters for model. So I was trying to run my code, but I am stuck with an error:
“‘KerasClassifier’ object has no attribute ‘call‘ “