One of the nuances of how things work is the DNS. Try it using another DNS like 184.108.40.206 or 220.127.116.11
Plenty on the web about changing your DNS so I'll pause here.
If that doesn't fix it, contact the web owner and ask what's up.
when I want to go to a specific websites, it tells me, that domain was suspended. The website was working fine for me 3 days ago.
I can access the same website with mobile data, but I can't do it through wifi...
Could you please help me?