Recently active problems in Wuala tagged with linux x64

It seems I couldn't load wuala under GNU/Linux 64 bits.
I've got an error when I try ./wuala in a console.

The error :
Using config file /home/my_username/.config/wualarc
Updating to version 106 ..................Shutting down...
java.lang.RuntimeException: java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.swt.widgets.Display
at com.wuala.loader.Loader.run(Loader.java:69)
at com.wuala.loader.Loader.main(Loader.java:134)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.swt.widgets.Display
at org.eclipse.swt.widgets.Widget.isValidSubclass(Unknown Source)
at org.eclipse.swt.widgets.Decorations.checkSubclass(Unknown Source)
at org.eclipse.swt.widgets.Shell.<init>(Unknown Source)
at org.eclipse.swt.widgets.Shell.<init>(Unknown Source)
at org.eclipse.swt.widgets.Shell.<init>(Unknown Source)
at org.eclipse.swt.widgets.Shell.<init>(Unknown Source)
at com.wuala.obfuscated.fd.a(Z:407)
at com.wuala.platform.Wuala.launch2(Z:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at com.wuala.loader.starter.ReflectiveWrapper.invoke(ReflectiveWrapper.java:38)
at com.wuala.loader.starter.ApplicationWrapper.launch(ApplicationWrapper.java:19)
at com.wuala.loader.Loader.run(Loader.java:63)
... 1 more
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