private function pauseOnRetry($retries, $status)
{
if ($retries <= self::MAX_ERROR_RETRY) {
$delay = (int) (pow(4, $retries) * 100000);
usleep($delay);
} else {
throw new \Exception('Error Code: ' . $status . PHP_EOL . 'Maximum number of retry attempts - ' . $retries . ' reached');
}
}