Fix add ddt fattura di vendita

modules/fatture/edit.php

@@ -673,7 +673,7 @@ if (!$block_edit) {
         $ddt = $dbo->fetchArray($ddt_query)[0]['tot'];
         echo '
                     <div class="tip">
-                        <a class="btn btn-sm btn-primary'.(!empty($ddt) ? '' : ' disabled').'" data-href="'.$structure->fileurl('add_ddt.php').'.php?id_module='.$id_module.'&id_record='.$id_record.'" data-toggle="tooltip" data-title="'.tr('Aggiungi ddt').'">
+                        <a class="btn btn-sm btn-primary'.(!empty($ddt) ? '' : ' disabled').'" data-href="'.$structure->fileurl('add_ddt.php').'?id_module='.$id_module.'&id_record='.$id_record.'" data-toggle="tooltip" data-title="'.tr('Aggiungi ddt').'">
                             <i class="fa fa-plus"></i> '.tr('Ddt').'
                         </a>
 					</div>';

modules/interventi/src/Components/Sessione.php

@@ -53,7 +53,7 @@ class Sessione extends Model
     public static function build(Intervento $intervento, Anagrafica $anagrafica, $inizio, $fine)
     {
         if (!$anagrafica->isTipo('Tecnico')) {
-            throw new InvalidArgumentException();
+            throw new InvalidArgumentException("Anagrafica di tipo diverso da Tecnico");
         }
 
         $model = new static();

plugins/notes.php

@@ -19,7 +19,7 @@
 
 include_once __DIR__.'/../core.php';
 
-if (!$notes->isEmpty()) {
+if (!empty($notes) && !$notes->isEmpty()) {
     echo '
         <div class="box box-info direct-chat direct-chat-info">
             <div class="box-header with-border">