Kernel dying after running keras code on jupyter notebook

I am following this course about deeplearning and for some reason everytime I run code that uses keras libraries the kernel dies, I have tried everything and updated every dependeny but the problem persists, I am using an Ubuntu virtual machine.

Here is an example of the imports that cause issue:

from keras.datasets import mnistfrom keras.models import load_model

Help is very much needed thank you.

I didn't know at first the where the issue came from, so I separated the code untill I isolated the issue and that keras and tensorflow were the ones that caused the kernel dying.