Does not compute. Why would you see that message if you didn’t?
Full logs, please. See [HowTo] Request support
FYI, dbus-nosystemd is only in the AUR for folks that think they can use Arch (or Arch-based distros like Manjaro) without systemd. There are other distros that don’t use systemd they should probably use instead.
Install dbus with the following command and answer y for all conflicts:
sudo pacman -Syu dbus