diff --git a/ChangeLog b/ChangeLog
index 25d8c7d638d..99b29a81f56 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -148,6 +148,9 @@ removed. You must now use the 6 parameters way. See file modMyModule.class.php f
 - Remove add_photo_web() that is ot used anymore by core code.
 
 
+***** ChangeLog for 3.5.6 compared to 3.5.5 *****
+Fix: Avoid missing class error for fetch_thirdparty method #1973
+
 ***** ChangeLog for 3.5.5 compared to 3.5.4 *****
 Fix: Holiday module was broken. Initializaion of amount of holidays failed.
 Fix: [ bug #1523 ] suite bug #1334 : filtre et ordre de tri conjoints ne s'appliquent pas.
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 0f41eefddf7..78ee9ad32f8 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -609,6 +609,8 @@ abstract class CommonObject
 
         if (empty($this->socid) && empty($this->fk_soc)) return 0;
 
+	    require_once DOL_DOCUMENT_ROOT.'/societe/class/societe.class.php';
+
         $thirdparty = new Societe($this->db);
         $result=$thirdparty->fetch(isset($this->socid)?$this->socid:$this->fk_soc);
         $this->client = $thirdparty;  // deprecated
diff --git a/htdocs/core/modules/action/rapport.pdf.php b/htdocs/core/modules/action/rapport.pdf.php
index cc3f2557db9..59f8fbfb129 100644
--- a/htdocs/core/modules/action/rapport.pdf.php
+++ b/htdocs/core/modules/action/rapport.pdf.php
@@ -184,6 +184,7 @@ class CommActionRapport
 		$sql.= " WHERE c.id=a.fk_action AND a.fk_user_author = u.rowid";
 		$sql.= " AND a.datep BETWEEN '".$this->db->idate(dol_get_first_day($this->year,$this->month,false))."'";
 		$sql.= " AND '".$this->db->idate(dol_get_last_day($this->year,$this->month,false))."'";
+		$sql.= " AND a.entity = ".$conf->entity;
 		$sql.= " ORDER BY a.datep DESC";
 
 		dol_syslog(get_class($this)."::_page sql=".$sql);
diff --git a/htdocs/langs/fr_FR/bills.lang b/htdocs/langs/fr_FR/bills.lang
index c4bf33c56cc..a61bbd6cef0 100644
--- a/htdocs/langs/fr_FR/bills.lang
+++ b/htdocs/langs/fr_FR/bills.lang
@@ -257,7 +257,7 @@ CreditNotes=Avoirs
 Deposit=Acompte
 Deposits=Acomptes
 DiscountFromCreditNote=Remise issue de l'avoir %s
-DiscountFromDeposit=Paiements issue de l'acompte %s
+DiscountFromDeposit=Paiement issu de l'acompte %s
 AbsoluteDiscountUse=Ce type de crédit ne peut s'utiliser que sur une facture non validée
 CreditNoteDepositUse=La facture doit être validée pour pouvoir utiliser ce type de crédit
 NewGlobalDiscount=Nouvelle ligne de déduction