diff --git a/CHANGELOG.md b/CHANGELOG.md
index f2a2c23..fb77f34 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [UNRELEASED]
+
+### Fixed
+
+- Fix SQL error for `lowcredits` task
+
 ## [1.15.1] - 2025-11-18
 
 ### Fixed
diff --git a/inc/entity.class.php b/inc/entity.class.php
index 7918381..f67849f 100644
--- a/inc/entity.class.php
+++ b/inc/entity.class.php
@@ -457,7 +457,7 @@ public static function cronLowCredits($task)
                     'glpi_plugin_credit_entities.is_active' => 1,
                 ],
                 'GROUPBY' => 'glpi_plugin_credit_entities.id',
-                'HAVING' => new QueryExpression('glpi_plugin_credit_entities.quantity - quantity_consumed <= (glpi_plugin_credit_entities.quantity * glpi_plugin_credit_entities.low_credit_alert) / 100'),
+                'HAVING' => [new QueryExpression('glpi_plugin_credit_entities.quantity - quantity_consumed <= (glpi_plugin_credit_entities.quantity * glpi_plugin_credit_entities.low_credit_alert) / 100')],
             ],
         );
 
diff --git a/inc/notificationtargetentity.class.php b/inc/notificationtargetentity.class.php
index b4ad989..44e839b 100644
--- a/inc/notificationtargetentity.class.php
+++ b/inc/notificationtargetentity.class.php
@@ -1,5 +1,36 @@
 <?php
 
+/**
+ * -------------------------------------------------------------------------
+ * Credit plugin for GLPI
+ * -------------------------------------------------------------------------
+ *
+ * LICENSE
+ *
+ * This file is part of Credit.
+ *
+ * Credit is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Credit is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Credit. If not, see <http://www.gnu.org/licenses/>.
+ * -------------------------------------------------------------------------
+ * @author    François Legastelois
+ * @copyright Copyright (C) 2017-2023 by Credit plugin team.
+ * @license   GPLv3 https://www.gnu.org/licenses/gpl-3.0.html
+ * @link      https://github.com/pluginsGLPI/credit
+ * -------------------------------------------------------------------------
+ */
+
+
+
 /**
  * -------------------------------------------------------------------------
  * Credit plugin for GLPI
@@ -44,6 +75,10 @@ public function addDataForTemplate($event, $options = [])
         /** @var DBmysql $DB */
         global $DB;
 
+        if (!($this->obj instanceof CommonDBTM)) {
+            return;
+        }
+
         $this->data['##credit.name##'] = $this->obj->getField('name');
         $this->data['##credit.quantity_sold##'] = $this->obj->getField('quantity');
         $this->data['##credit.begindate##'] = $this->obj->getField('begin_date');
@@ -63,8 +98,8 @@ public function addDataForTemplate($event, $options = [])
             ],
         );
         $data = $req->current();
-        $this->data['##credit.quantity_remaining##'] = (int) $this->obj->getField('quantity') - (int) $data['consumed_total'];
-        $this->data['##credit.quantity_consumed##'] = (int) $data['consumed_total'];
+        $this->data['##credit.quantity_remaining##'] = (string) ((int) $this->obj->getField('quantity') - (int) $data['consumed_total']);
+        $this->data['##credit.quantity_consumed##'] = (string) $data['consumed_total'];
 
         $this->data['##credit.entity##'] = Dropdown::getDropdownName(
             'glpi_entities',