Some error in the user side

Hi, my name is Francesco from Italy, sorry for may poor english.

So, i have installed Flexi and I'm trying to understand how it works ...
I created a test article and a link in the main menu of the site but when I click gives me this error

Fatal error: Call to a member function redirect () on a non-object in / web/htdocs/www.takeaweb.it/home/joomla2/components/com_flexicontent/models/items.php on line 160

when I try to insert a new article nothing happens

can you helpme?
tnx

Prova a ripetere tutto, magari più accuratamente, in Italiano che provo a capire cosa può essere

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www.flexicontent.org/phpbb/viewtopic.php...0&t=398&p=1698#p1698


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The link provided by Ken solved my problem.
Tnx