diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee6bf7bd..c3d4749d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Add compatibility with GLPI `CustomAsset`
 
+### Fixed
+
+- Fix migration error caused by unknown itemtype in containers
 
 ## [1.23.2] - 2025-12-22
 
diff --git a/inc/container.class.php b/inc/container.class.php
index f31e4241..805eb58a 100644
--- a/inc/container.class.php
+++ b/inc/container.class.php
@@ -213,6 +213,11 @@ public static function installBaseData(Migration $migration, $version)
                     self::generateTemplate($container);
                     foreach (json_decode((string) $container['itemtypes']) as $itemtype) {
                         $classname = self::getClassname($itemtype, $container["name"]);
+                        // prevent usage of plugin class if not loaded
+                        if (!class_exists($classname)) {
+                            continue;
+                        }
+
                         $old_table = $classname::getTable();
                         // Rename genericobject container table
                         if (
@@ -741,8 +746,10 @@ public static function create($fields)
 
         foreach (PluginFieldsToolbox::decodeJSONItemtypes($fields['itemtypes']) as $itemtype) {
             //install table for receive field
-            $classname = self::getClassname($itemtype, $fields['name']);
-            $classname::install();
+            if (class_exists($itemtype)) {
+                $classname = self::getClassname($itemtype, $fields['name']);
+                $classname::install();
+            }
         }
 
         return null;
@@ -754,20 +761,31 @@ public static function generateTemplate($fields)
             ? PluginFieldsToolbox::decodeJSONItemtypes($fields['itemtypes'], true)
             : [];
         foreach ($itemtypes as $itemtype) {
+
+            $sysname   = self::getSystemName($itemtype, $fields['name']);
+            $classname = self::getClassname($itemtype, $fields['name']);
+            $class_filename = $sysname . '.class.php';
+            $injection_filename = $sysname . 'injection.class.php';
+
             // prevent usage of plugin class if not loaded
             if (!class_exists($itemtype)) {
+                //remove file
+                if (file_exists(PLUGINFIELDS_CLASS_PATH . ('/' . $class_filename))) {
+                    unlink(PLUGINFIELDS_CLASS_PATH . ('/' . $class_filename));
+                }
+
+                if (file_exists(PLUGINFIELDS_CLASS_PATH . ('/' . $injection_filename))) {
+                    unlink(PLUGINFIELDS_CLASS_PATH . ('/' . $injection_filename));
+                }
+
                 continue;
             }
 
-            $sysname   = self::getSystemName($itemtype, $fields['name']);
-            $classname = self::getClassname($itemtype, $fields['name']);
-
             $template_class = file_get_contents(PLUGINFIELDS_DIR . '/templates/container.class.tpl');
             $template_class = str_replace('%%CLASSNAME%%', $classname, $template_class);
             $template_class = str_replace('%%ITEMTYPE%%', $itemtype, $template_class);
             $template_class = str_replace('%%CONTAINER%%', $fields['id'], $template_class);
             $template_class = str_replace('%%ITEMTYPE_RIGHT%%', $itemtype::$rightname, $template_class);
-            $class_filename = $sysname . '.class.php';
             if (file_put_contents(PLUGINFIELDS_CLASS_PATH . ('/' . $class_filename), $template_class) === false) {
                 Toolbox::logDebug('Error : class file creation - ' . $class_filename);
 
@@ -780,9 +798,8 @@ public static function generateTemplate($fields)
             $template_class = str_replace('%%ITEMTYPE%%', $itemtype, $template_class);
             $template_class = str_replace('%%CONTAINER_ID%%', $fields['id'], $template_class);
             $template_class = str_replace('%%CONTAINER_NAME%%', $fields['label'], $template_class);
-            $class_filename = $sysname . 'injection.class.php';
-            if (file_put_contents(PLUGINFIELDS_CLASS_PATH . ('/' . $class_filename), $template_class) === false) {
-                Toolbox::logDebug('Error : datainjection class file creation - ' . $class_filename);
+            if (file_put_contents(PLUGINFIELDS_CLASS_PATH . ('/' . $injection_filename), $template_class) === false) {
+                Toolbox::logDebug('Error : datainjection class file creation - ' . $injection_filename);
 
                 return false;
             }