Pictures are worth a thousand words
 

It looks like you either have no or a wrong access token.
Please go to Semplice -> General Settings and setup your access token.
Error Message from Instagram: The access_token provided is invalid.

[unex_ce_instagram id="content_3h3y6fs7j" count="33" span="span12" is_fluid="no" remove_gutter="no" target="dribbble" random="span4.span8"][/ce_instagram]