testing issue

[Nusrat17]

while testing I get this error

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Working on the IMG_1187_eslf dataset
Loading input light field ...Done

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Synthesizing novel views

View 01 of 64

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Estimating depth

Extracting depth features... Traceback (most recent call last):
File "test_gan.py", line 110, in
test_gan()
File "test_gan.py", line 105, in test_gan
synthesize_novel_views(depth_net, color_net, curInputLF, curFullLF, resultPath)
File "test_gan.py", line 65, in synthesize_novel_views
synthesizedView = evaluate_system(depth_net, color_net, images=inputLF, refPos=curRefPos)
File "/lustre03/project/6003167/nusratm/gan_lf_syn/train_gan.py", line 146, in evaluate_system
deltaY = inputView.Y - refPos[0]
File "/lustre03/project/6003167/nusratm/viewsynenv/lib/python3.7/site-packages/torch/tensor.py", line 511, in rsub
return _C._VariableFunctions.rsub(self, other)
TypeError: rsub() received an invalid combination of arguments - got (Tensor, numpy.ndarray), but expected one of:

• (Tensor input, Tensor other, *, Number alpha)
• (Tensor input, Number other, Number alpha)

thanks in advance