Fenos\Notifynder\Groups\GroupManager::findByName PHP Method

    public function findByName($groupName)
    {
        $group = $this->groupRepo->findByName($groupName);
        if (is_null($group)) {
            $error = 'Group Not Found';
            throw new NotifynderGroupNotFoundException($error);
        }
        return $group;
    }