bugfix different declaration

core/UI/Widget/DataTable/DataTable.php

@@ -126,7 +126,7 @@ class DataTable extends BaseContainer implements \ThurData\Servers\KerioEmail\Co
         return $this;
     }
 
-    public function setData(\ThurData\Servers\KerioEmail\Core\UI\Interfaces\DataSetInterface $data)
+    public function setData($data = [])
     {
         $this->recordsSet = $data;