diff --git a/html/install.php b/html/install.php
index ff3f54ed3..b708fef98 100644
--- a/html/install.php
+++ b/html/install.php
@@ -496,7 +496,7 @@ $majeur=explode(".",$version);
 if ( $majeur[0] < 12  )
   {
 ?>
-  <p><?php echo $failed . _(" Vous devez  utiliser au minimum une version 12 de PostGresql, si votre distribution n'en
+  <p><?php echo $failed . _(" Vous devez  utiliser au minimum une version 12 de PostgreSQL, si votre distribution n'en
 offre pas, installez-en une en la compilant. Lisez attentivement la notice sur postgresql.org pour migrer
 vos bases de données")?>
 </p>
diff --git a/include/XMLDocument/xmlinvoice_reader.class.php b/include/XMLDocument/xmlinvoice_reader.class.php
index 8df950906..7d723841e 100644
--- a/include/XMLDocument/xmlinvoice_reader.class.php
+++ b/include/XMLDocument/xmlinvoice_reader.class.php
@@ -92,7 +92,7 @@ class XMLInvoice_Reader
             return new XMLInvoice_Reader($dm);
         } else
         {
-            throw new \Exception("XR55: not a valid XML");
+            throw new \Exception("XR55: not a valid XML",55);
         }
     }
 
diff --git a/include/class/acc_operation.class.php b/include/class/acc_operation.class.php
index 74420c309..3ac02140f 100644
--- a/include/class/acc_operation.class.php
+++ b/include/class/acc_operation.class.php
@@ -1123,7 +1123,7 @@ class Acc_Detail extends Acc_Operation
             $this->det->note="";
             $this->det->note_html=null;
         } else {
-            $this->det->note=strip_tags($a['n_text']);
+            $this->det->note=strip_tags($a['n_text']??"");
             $this->det->note_html=($a['n_html'] == "")?$a['n_text']:$a['n_html'];
     }
     }