Event manager search problem when activating global table

Hello everbody,

I have install multisite on my site.
The main site is in french and the other one in english (and in german in a near future).
I want to display the events of the main site (fr) on all sites with the ability of filtering by caterory.

I display the 3 last events on the mainpage of both sites, everything works fine except search feature with :

<?php
if (!isset($_POST[‘number’])){
$nbre = 3;
}
else{
$nbre = $_POST[‘number’];
};

if (!isset($_POST[‘category’])){
$category = “”;
}
else{
$category = $_POST[‘category’];
};

if (class_exists(‘EM_Events’)) {
echo EM_Events::output( array(‘blog’=> 0,’category’=>$category,’orderby’=>’event_start_date’) );
}
?>

The result only display one event in the category, not all.
If I disable global table, it’s work (but i can’t see events on the other site).

I have event manager plugin activated on both sites, and network plugin activated also.

If someone can help me, i’ll be great.
Thank’s in advance.