Unable to get 3D volume in part 3 Even after running all the code without error.

[SahilMankar14]

Hello Sir,
We are following your video which is available on your You tube account for teeth segmentation (https://youtu.be/NSyEbJ7Phis).
We are using that code for liver segmentation. But while we were running the code, we came across some errors in part 3 video.
Which are listed as follows:

1. we are unable to use marching_cubes_lewiner instead of that we used marching_cubes.
2. we did not get any 3D-volume after this command {mp.plot(vertices, faces, return_plot=False)} as you got in you tube video.
   Link for my Goggle Colab. I request you to visit the link for better understanding of our problem :- usp=sharinghttps://colab.research.google.com/drive/1crKpq4kSRDxl2cwyAnyorWl00jcSgIhn?usp=sharing
   Also would it be possible for you to share the data set for teeth segmentation so we can get some idea how the code works and resolve our errors.

It would be of great help if you can help to solve the above mentioned error.