Cancelled an update and now the system won't boot

Hello, yesterday an update was taking too long, so I cancelled it without thinking about it much. Now whenever I try to boot Manjaro, I get these errors:

error: file '/boot/vmlinuz-5.10-x86_64' not found.
error: you need to load the kernel first.

How can I fix it?

The easiest way to resolve this issue is re-install your kernels by following these steps. If you receive any errors while follwing these steps, you should stop and open a help topic before proceeding.

    Download a recent Manjaro live iso from 2
    Write the ISO to a usb device as in the same way you would if you were planning to install Manjaro
    Boot off the ISO
Open a terminal
    In the terminal, type:
        sudo manjaro-chroot -a
        (Please note that if there is only one Linux system detected, you would need to enter 1 instead of 0 after running this command)
    This should bring you to a prompt that looks like this: #

    From the # prompt, type this to reinstall your kernels:
        sudo pacman -Syu $(pacman -Qq | grep -i "^linux[0-9]")

I’ll try that, thanks