MarsSeed [1] filed a deletion request for forge-server-1.6.4 [2]: EOL legacy release from 2015; PKGBUILD fails due to wrong checksum. Nothing on AUR needs this specific version.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/forge-server-1.6.4/
