@ttt126 that means you started MM AGAIN…

if you are using PM2, then you need to use the pm2 commands

pm2 status
pm2 stop x
where x is the name or number of the row of the app you want control
and then pm2 start x

or you can do

pm2 restart x

I STRONGLY recommend using manual start while you are developing your mm solution
changing config, adding modules

pm2 stop all cd ~/MagicMirror npm start

to stop MM in this mode, hit ctrl-q on the MM screen

if you do this over ssh cause you have no keyboard on the mm system (like me all the time) press ctrl-c in the ssh window where you did npm start

(if you do this when PM2 is controlling, it will do its job, “keep the app running”,
you stop it, and pm2 will restart it… )