diff --git a/htdocs/comm/propal/card.php b/htdocs/comm/propal/card.php
index 8bd9f7ffa98..54e3cf36c45 100644
--- a/htdocs/comm/propal/card.php
+++ b/htdocs/comm/propal/card.php
@@ -104,8 +104,11 @@ if ($id > 0 || ! empty($ref)) {
 	$ret = $object->fetch($id, $ref);
 	if ($ret > 0)
 		$ret = $object->fetch_thirdparty();
-	if ($ret < 0)
-		dol_print_error('', $object->error);
+	if ($ret <= 0)
+	{
+		setEventMessages($object->error, $object->errors, 'errors');
+		$action = '';
+	}
 }
 
 // Initialize technical object to manage hooks of page. Note that conf->hooks_modules contains array of hook context
@@ -1711,7 +1714,7 @@ if ($action == 'create')
 		print '</table>';
 	}
 
-} else {
+} elseif ($object->id > 0) {
 	/*
 	 * Show object in view mode
 	 */
@@ -1818,7 +1821,6 @@ if ($action == 'create')
 
 	$linkback = '<a href="' . DOL_URL_ROOT . '/comm/propal/list.php?restore_lastsearch_values=1' . (! empty($socid) ? '&socid=' . $socid : '') . '">' . $langs->trans("BackToList") . '</a>';
 
-
 	$morehtmlref='<div class="refidno">';
 	// Ref customer
 	$morehtmlref.=$form->editfieldkey("RefCustomer", 'ref_client', $object->ref_client, $object, $user->rights->propal->creer, 'string', '', 0, 1);
diff --git a/htdocs/core/class/commondocgenerator.class.php b/htdocs/core/class/commondocgenerator.class.php
index 015173f1f05..aeca3d5a102 100644
--- a/htdocs/core/class/commondocgenerator.class.php
+++ b/htdocs/core/class/commondocgenerator.class.php
@@ -425,7 +425,7 @@ abstract class CommonDocGenerator
 			{
 				$object->fetch_projet();
 			}
-			
+
 			$resarray[$array_key.'_project_ref'] = $object->project->ref;
 			$resarray[$array_key.'_project_title'] = $object->project->title;
 			$resarray[$array_key.'_project_description'] = $object->project->description;
@@ -510,7 +510,7 @@ abstract class CommonDocGenerator
 		    'line_multicurrency_total_tva_locale' => price($line->multicurrency_total_tva, 0, $outputlangs),
 		    'line_multicurrency_total_ttc_locale' => price($line->multicurrency_total_ttc, 0, $outputlangs),
 		);
-		
+
 		    // Units
 		if ($conf->global->PRODUCT_USE_UNITS)
 		{
@@ -527,16 +527,16 @@ abstract class CommonDocGenerator
 		$line->fetch_optionals($line->rowid,$extralabels);
 
 		$resarray = $this->fill_substitutionarray_with_extrafields($line,$resarray,$extrafields,$array_key=$array_key,$outputlangs);
-	
+
 		// Load product data optional fields to the line -> enables to use "line_options_{extrafield}"
-		if (isset($line->product_ref))
+		if (isset($line->fk_product) && $line->fk_product > 0)
 		{
-			$product = new Product($this->db);
-			$result = $product->fetch(null, $line->product_ref);
-			foreach($product->array_options as $key=>$label)
+			$tmpproduct = new Product($this->db);
+			$result = $tmpproduct->fetch($line->fk_product);
+			foreach($tmpproduct->array_options as $key=>$label)
 				$resarray["line_".$key] = $label;
-		}		
-		
+		}
+
 		return $resarray;
 	}