read only file system error after storing electronjs app on internet

Hi I'm getting an error in an Electron app - EROFS: read-only file system

I do some stuff inside the app's folder with JavaScript

And I get this error only after I stored the app on the internet and downloaded it back, I try to run in from my Downloads folder and Desktop. It works only in the Applications folder. Anyone knows how to fix it?

via aGoodRussianGuy