macOS installer needs internet connection to install macOS

Hey, I made my bootable USB stick with the 8gb Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina installer and Clover ready. But when I click install Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina, it says ‚,An internet connection is required to install macOS‘‘

How can I get internet in my installer?