404 on jupyter notebook

Hi,

I’ve made a fresh installation of jupyter notebooks on an Ubuntu machine and now I’m getting an error 404 instead of a plot.

I tried visualizing the notebook in binder but I get the same error message. I created a python version of the same code and that works.

The notebook can be found here:

I’m using jupyter 4.4.0 and python 3.6.6

Any help will be appreciated.

Thanks in advance,

V