Node Js | Fix startup error

Hi everyone, my website isn't launching anymore. When I try to run "npm start", I get errors, even though it worked fine after the purchase.

Please download the source code provided below and take a look to see if you're able to resolve these issues. Once you've checked it, let me know if you're able to fix it and feel free to submit your application-

**I have attached the source code to this project**