@niveki Could you provide more context? Are all the dependencies installed without errors when you run npm i or yarn ? Do you run in development first and then build or start? What the console logs when you encounter the API error? I’m without rpi’s at the momento so I can’t check… what version of node are you running? How did you install? NVM? Repo? Nodesource? Did you try using SystemD instead of PM2? Those can give some clue in how to help you.