dns_probe_finished_nxdomain this error but opening in firefox code example

Example 1: DNS_PROBE_FINISHED_NXDOMAIN

Best Fixes :
 
1. Change Your Domain's DNS 
2. Change Your Hosting's DNS
3. Clear Your Browsing Cache
4. Flush Your PC DNS Cahce [ ipconfig /flushdns ]
5. Renew Your PC IP  [ ipconfig /renew ]

Example 2: DNS_PROBE_FINISHED_NXDOMAIN node.js

// Change Your Port, Example :-
  
  const Port = '8000' // Change This To Something Else 433 / 8000 Maybe
app.listen(Port, (err) => {
    if (err) {
        console.log("Error Occured", err)
        return;
    } else {
        console.log("Listning To : ", Port)
    }
});