diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 5a882a4e68e..f8ffa809a86 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -1703,8 +1703,8 @@ class Contrat extends CommonObject
 		$total_localtax1 = $tabprice[9];
 		$total_localtax2 = $tabprice[10];
 
-		$localtax1_type = $localtaxes_type[0];
-		$localtax2_type = $localtaxes_type[2];
+		$localtax1_type = (empty($localtaxes_type[0]) ? '' : $localtaxes_type[0]);
+		$localtax2_type = (empty($localtaxes_type[2]) ? '' : $localtaxes_type[2]);
 
 		// TODO A virer
 		// Anciens indicateurs: $price, $remise (a ne plus utiliser)
@@ -1737,8 +1737,8 @@ class Contrat extends CommonObject
 		$sql .= ",tva_tx = ".((float) price2num($tvatx));
 		$sql .= ",localtax1_tx = ".((float) price2num($localtax1tx));
 		$sql .= ",localtax2_tx = ".((float) price2num($localtax2tx));
-		$sql .= ",localtax1_type='".$this->db->escape($localtax1_type);
-		$sql .= ",localtax2_type='".$this->db->escape($localtax2_type);
+		$sql .= ",localtax1_type='".$this->db->escape($localtax1_type)."'";
+		$sql .= ",localtax2_type='".$this->db->escape($localtax2_type)."'";
 		$sql .= ", total_ht = ".((float) price2num($total_ht));
 		$sql .= ", total_tva = ".((float) price2num($total_tva));
 		$sql .= ", total_localtax1 = ".((float) price2num($total_localtax1));
diff --git a/htdocs/core/modules/modFacture.class.php b/htdocs/core/modules/modFacture.class.php
index 9eac5d7b5e7..23b9ea85639 100644
--- a/htdocs/core/modules/modFacture.class.php
+++ b/htdocs/core/modules/modFacture.class.php
@@ -5,6 +5,7 @@
  * Copyright (C) 2004		Benoit Mortier			<benoit.mortier@opensides.be>
  * Copyright (C) 2005-2012	Regis Houssin			<regis.houssin@inodbox.com>
  * Copyright (C) 2021		Alexandre Spangaro		<aspangaro@open-dsi.fr>
+ * Copyright (C) 2022       Frédéric France         <frederic.france@netlogic.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -239,7 +240,7 @@ class modFacture extends DolibarrModules
 			'f.ref' => 'InvoiceRef*',
 			'f.ref_ext' => 'ExternalRef',
 			'f.ref_int' => 'ExternalRef',
-			'f.ref_client' => 'CutomerRef',
+			'f.ref_client' => 'CustomerRef',
 			'f.type' => 'Type*',
 			'f.fk_soc' => 'Customer*',
 			'f.datec' => 'InvoiceDateCreation',
@@ -352,7 +353,7 @@ class modFacture extends DolibarrModules
 			)
 		);
 
-		//Import Supplier Invoice Lines
+		// Import Invoice Lines
 		$r++;
 		$this->import_code[$r] = $this->rights_class.'_'.$r;
 		$this->import_label[$r] = "InvoiceLine"; // Translation key