LayerSlider: [Error] Failed to load resource:

Hello from Germany,

I bought the Layer Slider and very like to use it.

Unfortunately, getting an error message appears:

[Error] Failed to load resource: the server responded with a status of 404 (Not Found) (blank.gif, line 0)
Source: http://xy.com/wp-content/plugins/LayerSlider/static/img/blank.gif

About Google find many websites with the same error message:
wp-content/plugins/LayerSlider/static/img/blank.gif

How can I solve the problem?

Sorry for my english;-)

Create a 1px x 1px image in photoshop transparent bg and name it blank.gif

Then upload to folder as per path above.