To use this notebooks you will need to setup the notebook environment using a terminal and run:
$ conda env create -f armines-pilot.yml
then in you notebook you must start the kernel within this environment, it's located at top right, by default you should Have Python [env:default], when the correct environment is selected you should have Python [env:armines-pilot]
You can change the kernel in the menu Kernel > Change Kernel ...
If the environment is not shown, try to reload the jupiterlab web page.