All New Subdomain Redirect to cgi-sys / defaultwebpage.cgi

Hello, Today all new subdomains created by the user always point to cgi-sys / defaultwebpage.cgi. Even though I didn't make any changes to WHM or the server. Maybe someone can help, what should I do. thank you FYI: access: root OS: CloudLinux 7.8 Webserver: Litespeed 5.4.8 (build2) cPanel: v88.0.13