KeyError: 'x is not a file in the archive'

[wdlovecjy]

When I use this code for training, the following error is reported
Traceback (most recent call last):
File "/home/caojiayi/桌面/AGC-net-main/main.py", line 197, in
datasets, scaler = load_dataset(args.data_path, args.batch_size)
File "/home/caojiayi/桌面/AGC-net-main/main.py", line 23, in load_dataset
datasets['x_' + category] = cat_data['x']
File "/home/caojiayi/anaconda3/envs/pytorch/lib/python3.10/site-packages/numpy/lib/npyio.py", line 263, in getitem
raise KeyError(f"{key} is not a file in the archive")
KeyError: 'x is not a file in the archive'

How do I fix this? Thank you.