Error when I run the code in src/train.py

[LZL-CS]

Hi, when I run the "src/train.py", I got the error:

Traceback (most recent call last):
  File "/public/home/luanzl/anaconda3/envs/READ/lib/python3.9/site-packages/torch/serialization.py", line 608, in load
    return _legacy_load(opened_file, map_location, pickle_module, **pickle_load_args)
  File "/public/home/luanzl/anaconda3/envs/READ/lib/python3.9/site-packages/torch/serialization.py", line 777, in _legacy_load
    magic_number = pickle_module.load(f, **pickle_load_args)
_pickle.UnpicklingError: unpickling stack underflow

May I know how to resolve it, thanks!