Web server is down Error code 521 from VPN have access

hey its more than 24 hours that i cannot get to my website.
from VPN i can access my website but from my local network i cannot...
friends in the same country say also they cannot and on downforeveryoneorjustme.com it says its up
what can be the problem?
when i try to reach the webite it says:
Web server is down Error code 521
Visit cloudflare.com for more information.