Accordeon menu doesn´t working on site in SK lang

I am using this on my newest site where Accordeon menu are used as modules in the sidebar as menus for each company division. As language switcher I am using Falang from Faboba components, because migrated content from Joomla 1.5 using Joomfish, and migration working better with Falang.

In Slovak language I have trouble in Divízia armatúry company division, where is located in 2 level item named as Katalog výrobkov. From main menu this link working, but in According menu in Sidebar this 2 Level and 3 sublevel gives me only Javascript Void: 0

All you can see in my video:

screencast-o-matic.com/u/nr20/elba-menu-accordeon-error

In English language this working good


If you can please look at
www.elba.sk/index.php?option=com_content...6&Itemid=152&lang=sk

where is now enabled other menu, which working

The same problem with void 0 is in your menu at this page on item Technologie

Some interesting is that in English is menu item automatically opened and closed after mouse hover, and in Slovak language is only closed and opened only after manually clicking... please look at video:

screencast.com/t/pfUaPn7qAQdI

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