diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index 5a7990cd0a7..01d401e384d 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -4633,7 +4633,7 @@ class Product extends CommonObject
 				);
 
 				// Recursive call if there is childs to child
-				if (is_array($desc_pere['childs'])) {
+				if (isset($desc_pere['childs']) && is_array($desc_pere['childs'])) {
 					//print 'YYY We go down for '.$desc_pere[3]." -> \n";
 					$this->fetch_prod_arbo($desc_pere['childs'], $compl_path.$desc_pere[3]." -> ", $desc_pere[1] * $multiply, $level + 1, $id, $ignore_stock_load);
 				}
diff --git a/htdocs/product/composition/card.php b/htdocs/product/composition/card.php
index 69c872c51a4..bc6a1c36628 100644
--- a/htdocs/product/composition/card.php
+++ b/htdocs/product/composition/card.php
@@ -380,6 +380,7 @@ if ($id > 0 || !empty($ref)) {
 		print '</tr>'."\n";
 
 		$totalsell = 0;
+		$total = 0;
 		if (count($prods_arbo))	{
 			foreach ($prods_arbo as $value)	{
 				$productstatic->fetch($value['id']);
@@ -418,7 +419,7 @@ if ($id > 0 || !empty($ref)) {
 
 					$unitline = price2num(($fourn_unitprice * (1 - ($fourn_remise_percent / 100)) - $fourn_remise), 'MU');
 					$totalline = price2num($value['nb'] * ($fourn_unitprice * (1 - ($fourn_remise_percent / 100)) - $fourn_remise), 'MT');
-					$total += $totalline;
+					$total +=  $totalline;
 
 					print '<td class="right nowraponall">';
 					print ($notdefined ? '' : ($value['nb'] > 1 ? $value['nb'].'x ' : '').'<span class="amount">'.price($unitline, '', '', 0, 0, -1, $conf->currency)).'</span>';
@@ -680,7 +681,7 @@ if ($id > 0 || !empty($ref)) {
 
 						print '<td>'.$productstatic->getNomUrl(1, '', 24).'</td>';
 						$labeltoshow = $objp->label;
-						if ($conf->global->MAIN_MULTILANGS && $objp->labelm) {
+						if (!empty($conf->global->MAIN_MULTILANGS) && !empty($objp->labelm)) {
 							$labeltoshow = $objp->labelm;
 						}