Hello,
You did not properly update the system in quite some time. On all branches the linux54 is at 5.4.181-1 version.
That is a made up by yourself approach to deal with this …
When did you installed those, and how?
Now a new batch of updates came to stable, and for sure you will be in a pickle what to do
But you are already behind and also, just to update the kernel and drivers, is not possible. You will have to do a full system update.
sudo pacman-mirrors -f5 && pamac upgrade