public function getIsAuthenticated()
	{
		if (!$this->authenticated) {
			try {
				$proxy = $this->getProxy();
				$this->authenticated = $proxy->hasValidAccessToken();
			} catch (\OAuth\Common\Exception\Exception $e) {
				throw new ErrorException($e->getMessage(), $e->getCode(), 1, $e->getFile(), $e->getLine(), $e);
			}
		}
		return parent::getIsAuthenticated();
	}