Arch Linux ARM: pacman -Su fails with "could not determine cachedir mount point /var/cache/pacman/pkg"

[RadiatedExodus]

error: could not determine cachedir mount point /var/cache/pacman/pkg
error: failed to commit transaction (not enough free disk space)
Errors occurred, no packages were upgraded.

Android 13
Magisk v26.3 (Zygisk enabled)
Termux as terminal emulator (su)
And before you ask, yes I do have free disk space (there's at least 50 GB of free space)

/var/cache/pacman/pkg does exist as a directory

[Azriel Akbar Ferry A]

could not determine cachedir mount point /var/cache/pacman/pkg

Comment CheckSpace on /etc/pacman.conf

[RadiatedExodus]

@FerryAr That fixed it, thanks!