SystemError: gstrf was called with invalid arguments #90

Here's the traceback:
File "demo.py", line 47, in
no_post=args.no_post
File "/home/chengmy/FastPhotoStyle/process_stylization.py", line 131, in stylization
out_img = smoothing_module.process(out_img, cont_pilimg)
File "/home/chengmy/FastPhotoStyle/photo_smooth.py", line 52, in process
solver = scipy.sparse.linalg.factorized(A)
File "/home/chengmy/anaconda3/lib/python3.7/site-packages/scipy/sparse/linalg/dsolve/linsolve.py", line 443, in factorized
return splu(A).solve
File "/home/chengmy/anaconda3/lib/python3.7/site-packages/scipy/sparse/linalg/dsolve/linsolve.py", line 311, in splu
ilu=False, options=_options)
SystemError: gstrf was called with invalid arguments