I have no window

[Adri Tunggono]

Greetings!

I've just installed gcompris for my son, using a macbook air 2017 with
high sierra. Everything went well at first, but after a few days
suddenly there's no window when he opens the application.

I tried opening the exec file in terminal and found this error message:

Last login: Mon Aug 10 17:11:38 on console
Kikis-MacBook-Air:~ mia$
/Applications/gcompris-qt.app/Contents/MacOS/gcompris-qt ; exit;
exeCount set to:  47
qml: enter main.qml (run #47, ratio=1.7307692307692308,
fontRatio=2.4324324324324325, dpi=128,
userDataPath=/Users/mia/Library/Application Support/GCompris)
Downloading resource file "data2/voices-aac/voices-en_US.rcc"
Found box2d in  "/Applications/gcompris-qt.app/Contents/lib/qml"
qt.qpa.window: Window position QRect(374,-1073741362 692x-2147483648)
outside any known screen, using primary screen
invalid window content view size, check your window geometry
Local resource is up-to-date: "voices-en_US.rcc"
Successfully registered resource
"/Users/mia/Library/Caches/KDE/gcompris-qt/data2/voices-aac/voices-en_US.rcc"

Thanks in advance for any assistance.