@TheDuDiop i was just showing it was already there in the package.json file.
you did this
git clone https://github.com/linuxtuxie/MMM-SunnyPortal.git
cd MMM-SunnyPortal
npm install
danach
npm install request --save
npm install flow --save
npm install chart.js --sav
but only needed to do
git clone https://github.com/linuxtuxie/MMM-SunnyPortal.git
cd MMM-SunnyPortal
npm install