Hello. I’m using DNS Server 188.8.131.52 for my laptop. Sadly, I can’t access my website https://schools.madrasati.sa/Dashboards/Schools
It looks like your website doesn’t have any name servers set.
You would need to setup nameservers for the domain to be resolved. Did you recently try switching to Cloudflare for your website?
That hostname resolves at 184.108.40.206. But it’s a CNAME for schoolsvschoolsa.trafficmanager.net which does not resolve.