Hello there,
Just to mention: Some others have had issues with Live Server
Visual Studio Code Live Server Not Working - General - The freeCodeCamp Forum
Otherwise, to debug, would you mind doing the following:
- If Linux: open terminal and run:
ps -aux
- If Windows: open terminal and run:
Get-Process node | Format-Wide -Column 1
If you get an error, then that is fine. Otherwise, if you see an output where something is running on port 5500, then you need to kill that process.
Hope this helps