Kepler

I´ve opened the Help menu and select Kepler Documentation which causes an exeption:

export LANG=en-US
user@linux-9aw6:~/Software/kepler-2.2-linux> ./kepler.sh
JVM Memory = 5m 512m
[null] Checking for patches...
[null] Building Kars...
[null] Ran additional initialization for module core from class org.kepler.module.core.Initialize
[null] Ran additional initialization for module gui from class org.kepler.module.gui.Initialize
[null] Kepler Initializing...
[null] INFO (org.kepler.objectmanager.library.LibraryManager:buildLibrary:338) Building Library...
[null] INFO (org.kepler.objectmanager.cache.LocalRepositoryManager:scanReposForKarFiles:246) Scanning Local Repo
[null] INFO (org.kepler.kar.KARCacheManager:synchronizeKARCacheWithLocalRepositories:374) The Cache is in sync w
[null] version = 2.2
[null] ERROR (org.kepler.gui.MenuMapper:getActionFor:269) Exception trying to create an Action for classname: <org.kepler.gui.RunWithFeedbackChkBoxAction>:
[null] java.lang.IllegalArgumentException: RunWithFeedbackChkBoxAction constructor could not get actions for DEBUG->ANIMATE EXECUTION or DEBUG->STOP ANIMATING (java.lang.reflect.InvocationTargetException)

Nothing happens to the program functionality.

My platform is:
openSUSE11.4 kernel3.0
IcedTea/openjdk b22
kepler2.2.0