Live server does not open in browser

[Plorrain]

Hi!
The live server extension does not open what I code in the browser. I tried a lot of things after looking for solutions on the internet. The last thing I tried was entering the address of the page manually in the URL (http://127.0.0.1:5500/index.html) but it gives me this: Cannot GET /index.html.
I downloaded the extension on VS Studio and on Chrome. I restarted my computer several times and uninstalled/reinstalled VS Studio and the extension several times as well, it's still not working.
What's strange is that it used to work last week and nothing changed on my side (same computer and everything).
Does anyone have an idea on how I can make it work again?
Also, I am very new to coding so if someone answers please explain like I am 4 years old :)

Thanks!

[ritzdacanay24]

Soo old... but were you able to get this working?