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%3DZ5z7ZyW2s4ylhHvvyUNXZfh8CuWt5YH5i0ljE1xcAElMmdsrkidbOcgNAa9X6T79uG1ZaNECU%252FScjKFn6jLUC2sksV8Ms7nQNyFJnTwQwC6xFwTTCdwYKlR%252FZOIU55t7Y8fnMRIMrvsCCEbjoeQbQaHuF1AAZk3YDBtBaV2k3%252F5Wf5Rzq4f5ySkSZJ%252FtHz8R3dou%252BWd0LrzkHtXCNM2LxQU8SWkFnt4OpOvFtpVrNbLxQWNjrnmlTykuOQ11jzsZWOQKAqNtmtaSKbTiKtEaH0GYH6sDCtTG0B1e2NRp5mpRH3A8VNEuJd0%252F2nh8vMO23PjZW40cLWslM1ZJHcLCJg%253D%253D): failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests