Vue problem why it will not work in Windows 11 [closed]

Vue.js won’t work.

I’m trying code that used to work before, so the code isn’t the issue. None of the Vue.js seems to work either in Brave browser, or in Firefox.

I can’t seem to figure out what is the main problem here. I’ve tried several CDNs, I’ve tried several code examples.
I am using Windows 11.

Are there any settings I should take into account in the browser?

Or, maybe is the Anti-Virus scanner the problem? I’m using Norton for lack of a better one right now.

Are there any settings in Windows 11 I need to check?

What is a simple checklist I could follow to ensure that Vue.js works? Any installation steps I can repeat to have it function?

Thanks a bunch in advance… I really want to continue w/ my course.