IndexError: list index out of range

[Wenxuming711]

when i run the demo, the Render has this error
Error: Python: Traceback (most recent call last):
File "/SAM-6D/Render/render_custom_templates.py", line 45, in
scale = get_norm_info(args.cad_path)
File "/SAM-6D/Render/render_custom_templates.py", line 27, in get_norm_info
mesh = trimesh.load(mesh_path,force='mesh',file_type='ply')
File "/root/blender/blender-3.3.1-linux-x64/custom-python-packages/lib/python3.10/site-packages/trimesh/exchange/load.py", line 132, in load
loaded = load_mesh(file_obj,
File "/root/blender/blender-3.3.1-linux-x64/custom-python-packages/lib/python3.10/site-packages/trimesh/exchange/load.py", line 215, in load_mesh
results = loader(file_obj,
File "/root/blender/blender-3.3.1-linux-x64/custom-python-packages/lib/python3.10/site-packages/trimesh/exchange/ply.py", line 99, in load_ply
elements, is_ascii, image_name = _parse_header(file_obj)
File "/root/blender/blender-3.3.1-linux-x64/custom-python-packages/lib/python3.10/site-packages/trimesh/exchange/ply.py", line 415, in _parse_header
if 'element' in line[0]:
IndexError: list index out of range