Left Columns Cant Enable Or Disable

[SAY Digital]

hello i got some trouble with Leotheme. http://www.lesdixvins.cl/shop/

i cant enable or disable the left columns i try many things but cant fix so i change the home page and disable the left column with {*   *} but now the content is not centered.

http://mypresta.eu/en/art/prestashop-16/an-error-occured-while-updating-this-meta.html

this doesnt works 

i try many another topics but nothing works for me. I contact also the author of the theme cant fix...

Thanks

I forgot but its fresh install with installatron and Cpanel the theme have been installed by the Author of the theme...

Edited December 22, 2015 by SAY Digital (see edit history)