Can't find files : train.pkl and test.pkl

Dear Sponsor :
I got error when run the command :
$ python3 loglizer_demo.py
Traceback (most recent call last):
File "loglizer_demo.py", line 58, in
with open(os.path.join(pkl_path, "train.pkl"), "rb") as fr:
FileNotFoundError: [Errno 2] No such file or directory: '../../proceeded_data/BGL/BGL_ws=60m_s=60m_0.8train/train.pkl'

Where I find files : train.pkl and test.pkl ? thank you
House