Hi Natalia! Thanks for your message.
From the errors thrown by your Jupyter Notebook, this doesn't appear to be an issue with our code.
Rather, it appears to be an issue with your particular installation. Did you follow the instructions
here to ensure that you have all of the software dependencies?
Since it appears you're on a Windows machine, the easiest option for you might be to run through all of the examples in the cloud via
Google Colab, which should automatically include all of the software dependencies you need.
Thanks,
Jon