problem when preparing cambridge data

[roseupram]

thank you for your releasing, I have a problem
when using

python3 nerf_loc/datasets/video/preprocess_cambridge.py data/Cambridge

there's a error

/home/glj/miniconda3/envs/nerfloc/lib/python3.8/site-packages/numpy/core/_methods.py:189: RuntimeWarning: invalid value encountered in double_scalars
  ret = ret.dtype.type(ret / rcount)
Traceback (most recent call last):
  File "nerf_loc/datasets/video/preprocess_cambridge.py", line 342, in <module>
    offset = np.linalg.norm(xyz - avg_pose.reshape(1,3), axis=1)
ValueError: cannot reshape array of size 1 into shape (1,3)

could you please give some advics?