dotenv throw err internal/modules/cjs/loader.js:800 cant find modules

Question

I just started learning mern stacks, it was all fine but then suddenly I can't run my nodemon server, I don't know what I did wrong so that my server won't run again. I already search for solutions but I can't find the answer.

This is my server.js files

This is the error message that I got:

Note: I'm using windows 10 x64

Answer 1

I found the problem, inside my ads.js there is a line like this

I'm not sure what is this syntax for

but all i do is remove that line and my server is working again