There is problem with Amsterdam Data Center. Cloudlfate gives 522 for “colo=AMS”
uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
In case “colo=SIN” than its OK, website is opened. Hosting in Russia. Maybe there is problem in Amsterdam = Moscow route (route can be blocked by local russian ISP).