IndexError: list index out of range. Не запускается обучение нейросети

IndexError Traceback (most recent call last)

in () ----> 1 model.fit(x_train, y_train, batch_size=128, epochs=15, verbose=1)

5 frames

/usr/local/lib/python3.7/dist-packages/tensorflow/python/keras/engine/data_adapter.py in _is_list_of_scalars(inp) 621 return True 622 if isinstance(inp, (list, tuple)): --> 623 return ListsOfScalarsDataAdapter._is_list_of_scalars(inp[0]) 624 return False 625

IndexError: list index out of range