RuntimeError: Given groups=1, weight of size [32, 1, 3, 3], expected input[1, 3, 6, 7] to have 1 channels, but got 3 channels instead

Question

There is 6x7 numpy array:

[[[0 0 0 0 0 0 0]
  [0 0 0 0 0 0 0]
  [0 0 0 0 0 0 0]
  [0 0 0 0 0 0 0]
  [0 0 0 0 0 0 0]
  [0 0 0 0