If it were out of date … then it would need an update along with the rest of your system.
Just do your updates.
It sounds like maybe … you ended up in a partial-upgrade state?
In whatever case you will need to get to the running system by using possibly runlevel3 or chroot with a live usb.
It looks like you are already in a live system (judging by the miso entries)
So … if root is a regular ext4 partition you can do
manjaro-chroot -a
And continue from there.
For more info we would probably need the outputs of:
inxi -Fazy
mhwd -l -li
But we will probably be starting with a good old update, syncing mirrors first for good measure:
sudo pacman-mirrors -f
sudo pacman -Syu