no system option after install

[itzdrli]

after i installed the theme by ./install.sh, no errors, but when i restart the pc, in the grub menu, there are only 2 options(windows boot manager and UEFI Firmware settings) how can i fix that? i cant boot into my linux now

system: windows11+fedora 37(gnome 43) theme: vimix-4k/2k