[Theme Karma] please help

Hi i am using Karma theme with wp e-commerce plugin.
each time i add products in wp e-commerece the theme adds Custom Meta at the bottom of the products and the Meta is like “sbg_selected_sidebar: a:1:{i:0;s:1:”0”;}
sbg_selected_sidebar_replacement: a:1:{i:0;s:1:”0″;}”
how to remove or disable this function or how to solve this issue ?

Kindly help.. thanks