diff --git a/lib/classes/API/V1/adapter.class.php b/lib/classes/API/V1/adapter.class.php
index 1ce2d38917..f5ba1cf4f8 100644
--- a/lib/classes/API/V1/adapter.class.php
+++ b/lib/classes/API/V1/adapter.class.php
@@ -1919,8 +1919,6 @@ class API_V1_adapter extends API_V1_Abstract
      */
     protected function list_databox_metadata_field_properties(databox_field $databox_field)
     {
-        echo "listing properties for ".$databox_field->get_id()."\n";
-        var_dump($databox_field->get_tag());
         $ret = array(
             'id'               => $databox_field->get_id(),
             'namespace'        => $databox_field->get_tag()->getGroupName(),
diff --git a/lib/classes/databox.class.php b/lib/classes/databox.class.php
index 54f0d22b60..49663bab48 100644
--- a/lib/classes/databox.class.php
+++ b/lib/classes/databox.class.php
@@ -565,15 +565,7 @@ class databox extends base
         $stmt->closeCursor();
 
         foreach ($rs as $row) {
-
-            try {
-                $meta = databox_field::get_instance($this, $row['id']);
-            } catch (Exception $e) {
-                $meta = databox_fieldUnknown::get_instance($this, $row['id']);
-                $meta->set_name($row['name']);
-                unset($e);
-            }
-            $meta_struct->add_element($meta);
+            $meta_struct->add_element(databox_field::get_instance($this, $row['id']));
         }
         $this->meta_struct = $meta_struct;
         $this->set_data_to_cache($this->meta_struct, self::CACHE_META_STRUCT);
diff --git a/lib/classes/databox/field.class.php b/lib/classes/databox/field.class.php
index 5278bb2ce9..6bc3721cf0 100644
--- a/lib/classes/databox/field.class.php
+++ b/lib/classes/databox/field.class.php
@@ -123,6 +123,7 @@ class databox_field implements cache_cacheableInterface
     protected $dces_element;
     protected $Vocabulary;
     protected $VocabularyRestriction = false;
+    protected $on_error = false;
 
     const TYPE_TEXT = "text";
     const TYPE_DATE = "date";
@@ -174,10 +175,12 @@ class databox_field implements cache_cacheableInterface
 
         $this->id = (int) $id;
 
-        echo "create tag from " . $row['src'] . " for id $id - name is " . $row['name'] . "\n";
         $this->tag = self::loadClassFromTagName($row['src']);
-        var_dump($this->tag);
-        
+
+        if ($row['src'] != $this->tag->getTagname()) {
+            $this->on_error = true;
+        }
+
         $this->name = $row['name'];
         $this->indexable = ! ! $row['indexable'];
         $this->readonly = ! ! $row['readonly'];
@@ -242,7 +245,6 @@ class databox_field implements cache_cacheableInterface
      */
     public static function get_instance(databox &$databox, $id)
     {
-        echo "getting instance of databox_field $id for databox " . $databox->get_sbas_id() . "\n";
         $cache_key = 'field_' . $id;
         $instance_id = $databox->get_sbas_id() . '_' . $id;
         if ( ! isset(self::$_instance[$instance_id]) || (self::$_instance[$instance_id] instanceof self) === false) {
@@ -799,7 +801,7 @@ class databox_field implements cache_cacheableInterface
      */
     public function is_on_error()
     {
-        return false;
+        return $this->on_error;
     }
 
     public static function create(databox $databox, $name)
diff --git a/lib/classes/task/period/upgradetov32.class.php b/lib/classes/task/period/upgradetov32.class.php
index e418efa662..35ab4dab16 100644
--- a/lib/classes/task/period/upgradetov32.class.php
+++ b/lib/classes/task/period/upgradetov32.class.php
@@ -57,7 +57,7 @@ class task_period_upgradetov32 extends task_abstract
         printf("taskid %s starting." . PHP_EOL, $this->getID());
 
         $registry = registry::get_instance();
-//    $registry->set('GV_cache_server_type', 'nocache', \registry::TYPE_STRING);
+
         $registry->set('GV_sphinx', false, \registry::TYPE_BOOLEAN);
 
         if ( ! $this->sbas_id) {
@@ -76,17 +76,14 @@ class task_period_upgradetov32 extends task_abstract
             return;
         }
 
-        try {
-            foreach ($databox->get_meta_structure()->get_elements() as $struct_el) {
-                if ($struct_el instanceof databox_fieldUnknown) {
-                    throw new Exception('Bad field');
-                }
-            }
-        } catch (Exception $e) {
-            printf("Please verify all your databox meta fields before migrating, It seems somes are wrong\n");
-            $this->return_value = self::RETURNSTATUS_STOPPED;
+        foreach ($databox->get_meta_structure()->get_elements() as $struct_el) {
+            if ($struct_el->is_on_error()) {
 
-            return 'stopped';
+                printf("Please verify all your databox meta fields before migrating, It seems somes are wrong\n");
+                $this->return_value = self::STATE_STOPPED;
+
+                return self::STATE_STOPPED;
+            }
         }
 
         $this->running = true;