/usr/bin $ pdfsam
INFO  22:30:48.555 o.p.PdfsamApp[JavaFX-Launcher] Starting PDFsam
Apr 03, 2021 10:30:48 PM com.sun.javafx.css.StyleManager loadStylesheetUnPrivileged
WARNING: Resource "com/sun/javafx/scene/control/skin/modena/modena.css" not found.
Apr 03, 2021 10:30:48 PM com.sun.javafx.css.StyleManager loadStylesheetUnPrivileged
WARNING: Resource "com/sun/javafx/scene/control/skin/modena/modena.css" not found.
INFO  22:30:49.368 o.s.c.c.GlobalConfiguration[JavaFX Application Thread] Configuring Sejda 4.0.8
Exception in Application start method
INFO  22:30:49.636 o.p.PdfsamApp[JavaFX Application Thread] Closing PDFsam...
ERROR 22:30:49.647 org.pdfsam.UncaughtExceptionLogger[main] Unexpected error
java.lang.RuntimeException: Exception in Application start method
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ExceptionInInitializerError: null
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.createTKStage(QuantumToolkit.java:556)
	at javafx.graphics/javafx.stage.Stage.doVisibleChanging(Stage.java:1154)
	at javafx.graphics/javafx.stage.Stage.access$000(Stage.java:175)
	at javafx.graphics/javafx.stage.Stage$1.doVisibleChanging(Stage.java:182)
	at javafx.graphics/com.sun.javafx.stage.StageHelper.visibleChangingImpl(StageHelper.java:57)
	at javafx.graphics/com.sun.javafx.stage.WindowHelper.visibleChanging(WindowHelper.java:73)
	at javafx.graphics/javafx.stage.Window$12.invalidated(Window.java:1065)
	at javafx.base/javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:110)
	at javafx.base/javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:145)
	at javafx.graphics/javafx.stage.Window.setShowing(Window.java:1187)
	at javafx.graphics/javafx.stage.Window.show(Window.java:1202)
	at javafx.graphics/javafx.stage.Stage.show(Stage.java:273)
	at org.pdfsam.PdfsamApp.start(PdfsamApp.java:166)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
	at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
	at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
	... 1 common frames omitted
Caused by: java.util.MissingResourceException: Can't find bundle for base name com.sun.javafx.tk.quantum.QuantumMessagesBundle, locale en_GB
	at java.base/java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:2055)
	at java.base/java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1689)
	at java.base/java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1582)
	at java.base/java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1556)
	at java.base/java.util.ResourceBundle.getBundle(ResourceBundle.java:932)
	at javafx.graphics/com.sun.javafx.tk.quantum.WindowStage.<clinit>(WindowStage.java:101)
	... 22 common frames omitted