Tabella – chyba Call to undefined method Maite\Tabella::getElementPrototype()

Zkouším zprovoznit tabellu ale hází mi to chybu

Call to undefined method Maite\Tabella::getElementPrototype()

továrnička vypadá takto:

<?php
 protected function createComponentManualForm()
    {           $model = $this->tool;
                $grid = new \Maite\Tabella(
                array(
                    "context" => $this->context,
                    "source"  => $this->context->tool->dataSource(),
                    "limit" => 15,
                    "sorting" => "desc",
                    "onSubmit" => function($post) use ($model) {
                        $this->tool->saveSection($post);
                    },
                    "onDelete" => function($id) use ($model) {
                        $this->tool->deleteSectionInformation($id);
                    }
                ));

        return $grid;
    }
?>

v modelu mám metodu

<?php
public function dataSource()
    {
        return $this->database->dataSource('SELECT * FROM [sekce]');
    }
?>

Kde může být chyba?