I run a multi language site with MPML. I have no sidebars in all pages (except shop) in English version, but after switching to Greek, main sidebar is visible. Even if i deleted all widgets, Search is visible.
Tried to enable it only for English, then i have an empty left area.
Theme Options > Blog layout > Sidebar position > Without.
You can use [8theme] Layout Options to enable the sidebar on separate pages > http://prntscr.com/ocy2yy
If this is not what you are looking for, describe the problem in more details and provide temporary wp-admin access.