maxonline on "Polylang showing posts in both languages"

This worked for my website - Pexeto Expression Theme WP 3.9.1
– open the index.php file and delete the following code (starting on line 23):

query_posts(array(
'category__not_in' => $excludeCat,
'paged' => get_query_var('paged'),
'posts_per_page' => get_opt('_post_per_page_on_blog')
));

Now it's working properly