Installer does not work on Arch Linux

[avanc]

I get the following error while starting the Appimage:

/tmp/.mount_PgaY91/usr/bin/kios.wrapper
kdialog: Unknown options: caption, y, e, s, n, o.

(kios:6693): Pango-ERROR **: 19:35:42.390: Harfbuzz version too old (1.2.1)

Trace/breakpoint trap (core dumped)

I'm using Arch Linux which I updated today.

[avanc]

Unfortunately, the documentation for advanced installation is missing:
https://doc.kerberos.io/2.0/installation/installation/KiOS#advanced

[rogaven2002]

I found kios today and downloaded it.
I'm using PCLinuxOS 64bit. Same error message.
installed pango 1.44.7 and harfbuzz 2.6.4
What can I do?
I would like to test the program.