Problem with grub after update

I updated my arch Linux and restarted it and was met with a black screen with "GRUB _" on the top left

I can't type anything and I can't do anything, what does this mean? How can I fix it?

SOLVED

The problem was that my system switched to legacy bios (maybe while I was booting to windows and returning in bios)

I changed it back to UEFI mode and it worked