Trying to load model for production predictions with the code:

from keras_dec import ClusteringLayer
from keras.models import load_model
model = load_model('./DEC.model', custom_objects={'ClusteringLayer': ClusteringLayer})
...

This is not working and producing:
ValueError: initial_value must be specified.
This error is referring to line #64 in keras_dec.py
What is the issue?