NPM Startup Issue and Site Customization

Hello! My colleague and I recently launched our website, but today we're facing an issue — the "npm start" file isn't working. Could you help us identify the problem and why the file isn't starting? Now when I try to open the npm start file nothing happens, it doesn't give any error.

We haven't uploaded the site to a hosting service yet, and I'm not very familiar with computers or programming. If you're able to help resolve this, there could be potential for long-term collaboration.

I urgently need assistance, as I can't troubleshoot or maintain the site on my own.

Here’s a link to the MEGA to access the website files and try running the "npm start" file ✅

https://mega.nz/file/mtgDWDDa#gEc7TUeCC_TgvkZWs978AFXDXI-eolU4a9lG8uuLebQ
(if mega doesn't work for you, I'll send you the files here)

Thank you for your help.