@aidandon I commented on the other post; not sure if you have solved already. Did you install using my github repo? If so, the problem is that my pm2_MagicMirror.json file is looking for a file called startMagicMirror.sh and not mmstart.sh, so it won’t know to run your mmstart.sh file.
Edit: if you have this working now, can you mark the post as solved.