Iacopo

Fixed! They insert OPTION in the HTTP request and working now! Many thanks @nlpro

Seems Option is not present. https://app.securityforeveryone.com/public/report/00f089bb-b9ae-40ee-9fae-63bac85af6e9 It’s present in other website that working

Already deactivated all, changed theme…nothing

They can’t because it’s a shared hosting. On other wp install with same php options and setting and same direct admin panel no problem. Can’t figure out

Yes, the server accept all http connection