If I am not mistaken, this is the fallback boot path that UEFI firmware will use. The boot entries for EnOS seems to have been deleted in the NVRAM.
Since you are able to boot into your system, you could try reinstalling the bootloader from the running system:
sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=enos-grub
and then regenerate your grub.cfg using:
sudo grub-mkconfig -o /boot/grub/grub.cfg
Check with efibootmgr if the new boot entry has been created.
Reboot using the new boot entry and remove the old directories
endeavouros endeavouros-9494
from /boot/efi/EFI.