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%3D46Gsv8UdHh0GQASttHIRqazhWdvEdMCCfeIvZCOdaaqh7hdQAGZN2O2%252FcXLvM5N5PK1%252FzJ2%252BY7O6s%252B7jfnUcpLDgrwtX2alfUkpftntGQobk6rR0xQn7rBemP0hpIIPvjDppvlX%252Bob8NlNJBuapvQ2MDg9t1zp0RkWxbw%252B5%252FSdwBp9L8ern9u0MuxoRQ3C%252BHvz2%252BVTNl4%252FOie%252FpBy9wBFg%253D%253D): failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests