请问这个错误是什么原因造成的啊

[Pyolar]

Traceback (most recent call last):
File "main.py", line 213, in
training(args)
File "main.py", line 134, in training
train_base(opt, train_examples, dev_examples)
File "main.py", line 44, in train_base
train(opt, model, train_dataset)
File "D:\Documents\PycharmProjects\extraction\DeepNER-master\src\utils\trainer.py", line 219, in train
swa(swa_raw_model, opt.output_dir, swa_start=opt.swa_start)
File "D:\Documents\PycharmProjects\extraction\DeepNER-master\src\utils\functions_utils.py", line 83, in swa
model_path_list = get_model_path_list(model_dir)
File "D:\Documents\PycharmProjects\extraction\DeepNER-master\src\utils\functions_utils.py", line 74, in get_model_path_list
key=lambda x: (x.split('/')[-3], int(x.split('/')[-2].split('-')[-1])))
File "D:\Documents\PycharmProjects\extraction\DeepNER-master\src\utils\functions_utils.py", line 74, in
key=lambda x: (x.split('/')[-3], int(x.split('/')[-2].split('-')[-1])))
IndexError: list index out of range