rFdynHUD can't read plugin

[errysembloh_]

Hey guys, i'm new here, just starting to play rFactor for 4days

I have a problem when trying to run the rfdynhud editor, a dialog box show uo and said Error running the rFDynHUD Editor "net/ctdp/rfdynhud/plugins/datasender/communicatorconstants"

when i check the rfdynhud_editor log, things turn up that
"Loading GameEventsPlugins...
java.lang.NoClassDefFoundError: net/ctdp/rfdynhud/plugins/datasender/communicatorconstants ...blahblahblah... Caused by: java.lang.classnotfoundexception: net.ctdp.rfdynhud.plugins.datasender.communicatorconstants

Do anyone knows about this problem ?

Thanks for the help anyway...

 

[errysembloh_]

Also I have a Win 7 64bit and already install a 32bit Java 6 update 27