an error in xfeat+lg_torch_hub.ipynb

[HumanDr]

When I run xfeat+lg_torch_hub.ipynb ,The output of mkpts_0 and mkpts_1 are both 0.

These are the error messages:
error Traceback (most recent call last)
Cell In[19], line 19
16 print(mkpts_1.shape)
17 print(len(mkpts_1))
---> 19 canvas = warp_corners_and_draw_matches(mkpts_0, mkpts_1, im1, im2)
20 plt.figure(figsize=(12,12))
21 plt.imshow(canvas[..., ::-1]), plt.show()

Cell In[2], line 6
4 def warp_corners_and_draw_matches(ref_points, dst_points, img1, img2):
5 # Calculate the Homography matrix
----> 6 H, mask = cv2.findHomography(ref_points, dst_points, cv2.USAC_MAGSAC, 3.5, maxIters=1_000, confidence=0.999)
7 mask = mask.flatten()
9 print('inlier ratio: ', np.sum(mask)/len(mask))

error: OpenCV(4.5.5) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\usac\ransac_solvers.cpp:394: error: (-2:Unspecified error) in function 'auto __cdecl cv::usac::mergePoints::<lambda_ebfddccf6ce6f431289911da93cac0d6>::operator ()(class cv::Mat &,int) const'

Invalid dimension of point (expected: 'points.cols >= pt_dim'), where
'points.cols' is 0
must be greater than or equal to
'pt_dim' is 2