[SOLVED] "Reboot and select proper boot device" given by Arch install after upgrading system

[frigid hamlet]

Hello, I recently upgraded my PC and afterwards when I tried to boot into Arch I get the error above.
Here is what components I had and what I have now
Asus Prime Z370-P -> MSI PRO Z790-P WIFI
Intel Core i5 8600k -> Intel Core -5-12600k
Kingston Fury DDR4 16GB -> Kingston Fury Beast DDR5 16GB

Within the MSI bios I have turn on CSM mode however, despite allowing me to see, and attempt to boot from the device, reports the error above.
Is this a bootloader issue? I can not strictly remember if I created my grub file for UEFI or BIOS (I think I made it efi).

If anybody could help me that would be great! Thank you!

[graceful rivet]

Did you install a new arch system or did you update your system ?

I got the same error a week ago when I installed a new arch system and I succeeded to fix it

[frigid hamlet]

Apologies. I have already fixed my issue

I didnt see this because I was in the BIOS menu of my PC. I fixed the issue I needed to use a BIOS partition instead of using a EFI one. Thank you for trying to help though