Check if there is a typo in *Domain Name*

Im hosting my website on Github Pages with a Google Domain and on my iPhone in Chrome it works perfect
but on my desktop either Chrome(My normal Browser (i did chear cache)) or Firefox(Which i just installed) im getting the bellow error and i love some help
Thanks

Chrome Desktop
This site can’t be reached
Check if there is a typo in topher2001.com.
DNS_PROBE_FINISHED_NXDOMAIN

Firefox Desktop
Hmm. We’re having trouble finding that site.
We can’t connect to the server at topher2001.com.

Considering your site is accessible from any other PC (including mine), you should check for a local cause which would affect all your browser on your Desktop.

See for example "Firefox can't load websites but other browsers can", which lists causes like:

• Internet Security software blocking Firefox
• Firefox connection settings
• IPv6
• DNS Prefetching
• Check for malware
• Check if an extension is causing the problem

Some of those reason could apply to more than one browser and explain why you don't access your site on your desktop.