[Plugin: Len Slider] not work

I created slider with several items, paste slider in post, but it doesnt appear, also i dont see it in admin panel (link “Preview”).
I tried to force it works on localhost and server – but it doesnt work!
Plugin version – 1.1.2, wordpress – 3.3.1

I like this plugin and i am waiting any help!
https://www.ads-software.com/extend/plugins/len-slider/