FileNotFoundError: stats.txt not found

[Shuhul24]

After git clone and setting the path of data to directory: data/7Scenes/, following is the command that I executed:

python run_nerf.py --config config_nerf.txt

Following is the error that I ended up with:

Traceback (most recent call last):
  File "direct-posenet/script/run_nerf.py", line 901, in <module>
    train()
  File "direct-posenet/script/run_nerf.py", line 604, in train
    train_dl, val_dl, hwf, i_split, bds, render_poses, render_img = load_7Scenes_dataloader_NeRF(args)
  File "direct-posenet/script/../dataset_loaders/load_7Scenes.py", line 489, in load_7Scenes_dataloader_NeRF
    stats = np.loadtxt(stats_filename)
  File "anaconda3/envs/directpose/lib/python3.9/site-packages/numpy/lib/_npyio_impl.py", line 1381, in loadtxt
    arr = _read(fname, dtype=dtype, comment=comment, delimiter=delimiter,
  File "anaconda3/envs/directpose/lib/python3.9/site-packages/numpy/lib/_npyio_impl.py", line 997, in _read
    fh = np.lib._datasource.open(fname, 'rt', encoding=encoding)
  File "anaconda3/envs/directpose/lib/python3.9/site-packages/numpy/lib/_datasource.py", line 192, in open
    return ds.open(path, mode, encoding=encoding, newline=newline)
  File "anaconda3/envs/directpose/lib/python3.9/site-packages/numpy/lib/_datasource.py", line 532, in open
    raise FileNotFoundError(f"{path} not found.")
FileNotFoundError: /data/7Scenes/heads/stats.txt not found.

How to overcome this? Do I need to do some sort of preprocessing (as mentioned in the repo) as done in MapNet?