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%3D6D%2Bp6c1vPM6lhHvvyUNXZfh8CuWt5YH5OVuOuRD5gLJMmdsrkidbOWBzzpT26idJY87vWjZswh6sp5S4UsrRxJxhMCMi1oISPYw64VKWF4fuk%2BeVlwGBTFDyFMDBOG7QuG1ZaNECU%2FQadkIY6SpxOg%2BXq6U1LObdXRuv7xpz1L7QEUCpE4O7XfdEsGNZ0QGsWTz0zPgu7rdsGhvv3C%2FfO3hLiAH3DBNkCC%2B%2FfZ%2FU%2FAlcWnOYJUGi3UTmmJB2FHwZD5erpTUs5t2dQ50H0%2B5cMRzuYWYp3GKO3P8CmvD%2FJEXguHtAGQMEBYQJcAalGcHkZQUWDPdEFUc%3D%26activityId%3D8ffacdca9402483396d8b5088e5a8370): failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests