Error 215:Assertion Failed

[almondboi]

Getting this error when I run the Make_Dataset_For_Aligned.ipynb.

error: OpenCV(4.4.0) C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-52oirelq\opencv\modules\imgproc\src\resize.cpp:3929: error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'

Haven't changed anything from the default code and can't seem to wrap my head around it. Is it an OpenCV version issue as i'm on 4.4.0.