Problem caused by missing files

Error:

– Layers with items doesn’t appear.

Firebug error:”TypeError: layer.css(…).ntransition is not a function

layer.css(‘visibility’, ‘visible’).ntransition(“

If your layers, items aren’t appearing in your slider, while you can see them in your Slide editor, then your problem is either, that your files are missing, so you should reinstall the Smart Slider, or this could also happen, if you saved down an invalid html code in an item.