Internal Server Error

file_get_contents(http://api.web.21ds.cn/taoke/doItemHighCommissionPromotionLinkByAll?apkey=ac4bab46-4e70-2270-2255-156b59a8b8c1&tbname=ieliwb&pid=mm_28179349_1691200061_110536850253&content=https%3A%2F%2Fuland.taobao.com%2Fcoupon%2Fedetail%3Fe%3DRCDXMzLouJ%252BlhHvvyUNXZfh8CuWt5YH5OVuOuRD5gLJMmdsrkidbOcgNAa9X6T79uG1ZaNECU%252FStJZO2YZEVZezdEEegZX2BXRuv7xpz1L7QEUCpE4O7XQS4fvwY%252FLeXylDh5MVoKrD4xTDPFiVIoVK%252FHR7i74CnoXqTwjTPfjVao0aMDndOoECLzviA1k7UkK3WX6PtPod01zqgBpp62YIqy9PCW2uop8c2XxsR6jXpYJ2J9PVYhmlhdtw8gB4jH4P3zKhUcU02GOdIiNXzalVusqqnhify): failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests