Page Not Found

Error: Page Not Found at /home/ec2-user/Udemy_YelpCamp/app.js:152:10 at Layer.handle [as handle_request] (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/layer.js:95:5) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:144:13) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:140:7) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:140:7) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:140:7) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:140:7) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:140:7) at next (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:140:7) at Route.dispatch (/home/ec2-user/Udemy_YelpCamp/node_modules/express/lib/router/route.js:114:3)