diff --git a/modules/stats_logistic/ajax.php b/modules/stats_logistic/ajax.php
index 594c4405..078da683 100644
--- a/modules/stats_logistic/ajax.php
+++ b/modules/stats_logistic/ajax.php
@@ -23,14 +23,21 @@ switch ($action) {
         $start = Tools::getValue('date_export_begin');
         $end = Tools::getValue('date_export_end');
         
+        $path = dirname(__FILE__) . '/export';
+        $filename = 'export-remb-'.$start.'-'.$end.'.csv';
+        $file = $path . '/' . $filename;
+        if (file_exists($file)) {
+            unlink($file);
+        }
+        
         if (empty($start) || empty($end)) {
             $url = '';
         } else {
             $url = Tools::getShopDomain(true) . '/modules/stats_logistic/ajax.php?action=check&token='.Tools::getValue('token');
         }
         
-        $cmd = dirname(__FILE__).'/bin/export.php --start '.$start.' --end '.$end.'';
-        exec('php '.$cmd.' &');
+        $cmd = dirname(__FILE__).'/bin/export.php --start '.$start.' --end '.$end;
+        exec("php ".$cmd." > /dev/null &");
         
         // Always return checkin url
         echo json_encode(array(
diff --git a/modules/stats_logistic/bin/export.php b/modules/stats_logistic/bin/export.php
index 0b009b9f..80a384d6 100644
--- a/modules/stats_logistic/bin/export.php
+++ b/modules/stats_logistic/bin/export.php
@@ -9,7 +9,6 @@ $_SERVER['SERVER_PORT'] = 443;
 require_once __DIR__ . '/../../../config/config.inc.php';
 require_once __DIR__ . '/../stats_logistic.php';
 
-
 if (!Tools::isCli()){
     exit();
 }
diff --git a/modules/stats_logistic/models/StatsLogistic.php b/modules/stats_logistic/models/StatsLogistic.php
index a9be642e..d18b7a95 100644
--- a/modules/stats_logistic/models/StatsLogistic.php
+++ b/modules/stats_logistic/models/StatsLogistic.php
@@ -15,7 +15,7 @@ class StatsLogistic
     {
         $this->date_export_begin = $start;
         $this->date_export_end = $end;
-        
+        $fname = 'export-remb-'.$this->date_export_begin.'-'.$this->date_export_end.'.csv';
         $result = null;
         
         $sale_ids = $this->getSales();
@@ -180,7 +180,7 @@ class StatsLogistic
                 }
             }
         }
-        $fname = 'export-remb-'.$this->date_export_begin.'-'.$this->date_export_end.'.csv';
+        
         if ($result !== null) {
             $this->exportCSV($result, $fname);
         } else {
diff --git a/modules/stats_logistic/views/js/export.js b/modules/stats_logistic/views/js/export.js
index c212eb62..cdaf9b24 100644
--- a/modules/stats_logistic/views/js/export.js
+++ b/modules/stats_logistic/views/js/export.js
@@ -27,11 +27,8 @@ $(function(){
 	}
 	
 	$('form').submit(function(e) {
-		e.preventDefault();
 		$(this).find('input#submitExport').attr('disabled', 'disabled');
 		url = $(this).attr('action');
-		console.log(url);
-		console.log($(this).serialize());
 		$.post(url, $(this).serialize(), function (data, textStatus) {
 			if (data.url != '') {
 				url = data.url;