Cannot boot into High Sierra after update

As you can read from the title...I cannot boot anatomy system. It boots to the clover boot screen with 3 options of booting from:

internal_hfs: Boot FileVault Prebooter from Preboot | internal_hfs: macOS from MacOS | recovery: Boot Recovery from Recovery.

All of the options send me to a screen with the 'prohibit' sign ø.

Before running the update, I updated clover, placed the new APFS.efi into the EFI partition, along with the fakesmc and generics kexts.

Can someone provide me with some assistance. Thanks so much!