We have the website http://lospilareseditorial.com/ with your theme
and with the Visual Composer 4.8.1 and Ultimate addons for Visual Composer 3.14.1. If we update the release we have problems with the margins.
If you see the main page, all the photos in the bottom, if we upodate the VC we have problem with the low margin, the system insert a line, buit in the column setting we have inserted 0px
Seel this file http://mentadata.es/fotos_pr/20160301_visual_composer%20error.pdf
Since the release 3.14.1 and 4.8.1 (VC) all the uopdate give us problmes