-215 Assertion error

[DishaCoder]

Please help me with this error:
error: OpenCV(4.6.0) /io/opencv/modules/imgproc/src/shapedescr.cpp:874: error: (-215:Assertion failed) npoints >= 0 && (depth == CV_32F || depth == CV_32S) in function 'pointSetBoundingRect'

I have tried all the possible solutions, non of them worked.
Could you please tell me which opencv version have you used?

I kindly request you to help me with this.

Thanks

[elliot14A]

In the function load_images_from_folder() replace ret,ctrs,ret with ctrs, ret