Hi @ARTiSticov,
Thank you for sharing your repo. The TensorFlow docs 229 say that "there are two formats you can use to save an entire model to disk: the TensorFlow SavedModel format , and the older Keras H5 format .
Your script expects the TensorFlow SavedModel format and thus fails to find .pb files in mypredictor/ as the directory contains .h5 files instead.
I would recommend reading the TensorFlow/Keras docs to understand how to save and load models of the same format: Save and load Keras models  |  TensorFlow Core 229
Best, 
Snehan