'node.js : Failed to load resource: the server responded with a status of 404

i am getting Failed to load resource: the server responded with a status of 404 (Not Found)

in my nodejs app i dont know why

enter image description here

i am adding git hub repostory here https://github.com/vivekkn91/ask-backend.git

 app.get("/questapi", function (req, res) {
    console.log("apicalled");

the log is not comming in console



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