My website cannot accessed by certain wifi after using domain from premium plan

I facing problem when i open my website using wifi from my campus, with message like this

IP address could not be found

My web running perfectly on individual network tested in several phone of my friend. This happen after connected to domain i get free from premium plan. Is this because i used public registration?

or any other solution on setting the domain?

The campus Wi-Fi might be using a DNS server that hasn’t updated with your domain’s new IP address yet.
Wait 24–48 hours for DNS propagation to complete.
Ask the campus IT to flush or update their DNS cache.
If your domain was just connected, Wix needs some time to finish DNS propagation. Again, up to 48 hours globally.

Check your DNS here - DNS Checker

Thank you for the explanation. Its totally fine right now.