How can I train VGT?

In my case, I use command like below.
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CUDA_VISIBLE_DEVICES=2 python train_VGT.py --config-file Configs/cascade/D4LA_VGT_cascade_PTM.yaml --num-gpus 1 MODEL.WEIGHTS ./pretrained/D4LA_VGT_model.pth OUTPUT_DIR ./trained
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error accured like below.
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Traceback (most recent call last):
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/train_VGT.py", line 156, in
launch(
File "/home/swchoi/.conda/envs/vgt/lib/python3.9/site-packages/detectron2/engine/launch.py", line 84, in launch
main_func(*args)
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/train_VGT.py", line 131, in main
trainer = MyTrainer(cfg)
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/ditod/VGTTrainer.py", line 432, in __init__
model = self.build_model(cfg)
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/ditod/VGTTrainer.py", line 571, in build_model
model = build_model(cfg)
File "/home/swchoi/.conda/envs/vgt/lib/python3.9/site-packages/detectron2/modeling/meta_arch/build.py", line 22, in build_model
model = META_ARCH_REGISTRY.get(meta_arch)(cfg)
File "/home/swchoi/.conda/envs/vgt/lib/python3.9/site-packages/detectron2/config/config.py", line 190, in wrapped
init_func(self, **explicit_args)
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/ditod/VGT.py", line 48, in __init__
self.Wordgrid_embedding = WordnnEmbedding(vocab_size, hidden_size, embedding_dim, \
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/ditod/Wordnn_embedding.py", line 39, in __init__
self.init_weights(bros_embedding_path)
File "/workspace/future_task/AdvancedLiterateMachinery/DocumentUnderstanding/VGT/object_detection/ditod/Wordnn_embedding.py", line 47, in init_weights
state_dict = torch.load(bros_embedding_path + "pytorch_model.bin", map_location='cpu')
File "/home/swchoi/.conda/envs/vgt/lib/python3.9/site-packages/torch/serialization.py", line 699, in load
with _open_file_like(f, 'rb') as opened_file:
File "/home/swchoi/.conda/envs/vgt/lib/python3.9/site-packages/torch/serialization.py", line 231, in _open_file_like
return _open_file(name_or_buffer, mode)
File "/home/swchoi/.conda/envs/vgt/lib/python3.9/site-packages/torch/serialization.py", line 212, in __init__
super(_open_file, self).__init__(open(name, mode))
FileNotFoundError: [Errno 2] No such file or directory: '/path/layoutlm-base-uncased/pytorch_model.bin'
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I think FileNotFoundError: [Errno 2] No such file or directory: '/path/layoutlm-base-uncased/pytorch_model.bin' caused by Wordnn_embedding.py's init_weights method.
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Please answer how I can solve the problem.