diff --git a/htdocs/comm/action/card.php b/htdocs/comm/action/card.php
index c11f49d43ad..bc0a514dadb 100644
--- a/htdocs/comm/action/card.php
+++ b/htdocs/comm/action/card.php
@@ -503,7 +503,6 @@ if (empty($reshook) && $action == 'update')
 		$object->note_private = trim(GETPOST("note", "restricthtml"));
 		$object->fk_element	 = GETPOST("fk_element", "int");
 		$object->elementtype = GETPOST("elementtype", "alphanohtml");
-
 		if (!$datef && $percentage == 100)
 		{
 			$error++; $donotclearsession = 1;
diff --git a/htdocs/comm/action/class/actioncomm.class.php b/htdocs/comm/action/class/actioncomm.class.php
index c0885e4311a..aa5711a69ce 100644
--- a/htdocs/comm/action/class/actioncomm.class.php
+++ b/htdocs/comm/action/class/actioncomm.class.php
@@ -1000,7 +1000,7 @@ class ActionComm extends CommonObject
 
 		// Clean parameters
 		$this->label = trim($this->label);
-		$this->note_private = dol_htmlcleanlastbr(trim(empty($this->note_private) ? $this->note : $this->note_private));
+		$this->note_private = dol_htmlcleanlastbr(trim(!isset($this->note_private) ? $this->note : $this->note_private));
 		if (empty($this->percentage))    $this->percentage = 0;
 		if (empty($this->priority) || !is_numeric($this->priority)) $this->priority = 0;
 		if (empty($this->transparency))  $this->transparency = 0;
diff --git a/htdocs/cron/class/cronjob.class.php b/htdocs/cron/class/cronjob.class.php
index 9484c6a2331..e58abf24223 100644
--- a/htdocs/cron/class/cronjob.class.php
+++ b/htdocs/cron/class/cronjob.class.php
@@ -1052,7 +1052,10 @@ class Cronjob extends CommonObject
 				$object = new $this->objectname($this->db);
 				if ($this->entity > 0) $object->entity = $this->entity; // We work on a dedicated entity
 
-				$params_arr = array_map('trim', explode(",", $this->params));
+				$params_arr = array();
+				if (!empty($this->params) || $this->params === '0') {
+					$params_arr = array_map('trim', explode(",", $this->params));
+				}
 
 				if (!is_array($params_arr))
 				{
diff --git a/htdocs/expedition/class/expedition.class.php b/htdocs/expedition/class/expedition.class.php
index 6c2faa0624d..a0acef35203 100644
--- a/htdocs/expedition/class/expedition.class.php
+++ b/htdocs/expedition/class/expedition.class.php
@@ -957,6 +957,7 @@ class Expedition extends CommonObject
 							$langs->load("errors");
 							$this->error = $langs->trans('ErrorStockIsNotEnoughToAddProductOnShipment', $product->ref);
 							$this->errorhidden = 'ErrorStockIsNotEnoughToAddProductOnShipment';
+
 							$this->db->rollback();
 							return -3;
 						}
diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index fc732802eda..03d81d4fd64 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -4245,8 +4245,7 @@ class Product extends CommonObject
 		$resql = $this->db->query($sql);
 		if ($resql) {
 			$obj = $this->db->fetch_object($resql);
-			if ($obj) { $nb = $obj->nb;
-			}
+			if ($obj) { $nb = $obj->nb;	}
 		} else {
 			return -1;
 		}