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%2Fs.click.taobao.com%2Ft%3Fe%3Dm%253D2%2526s%253Dk8PKsUASrTFw4vFB6t2Z2ueEDrYVVa64K7Vc7tFgwiHLWlSKdGSYDsXCG7mkOwh%252B5x%252BIUlGKNpWsUeXdEe8Q14k7%252BT2yQwBP%252FWt8iuJjtCJ%252FrCFA%252FYM4jyMCuhYmlYlfPVqz10TzFEBRjuGtQx7KxIwe6%252FtGg2%252FR0g4t7YZScZYp6nCvtaIgPaHP8j5mgpDGbKkEkwsvwgBuShzkDg9djpZBcuaTILAojrLVfkRJsdBN8uoJnBCv5cYMXU3NNCg%252F%26union_lens%3DlensId%3ATAPI%401601827005%400b57b76f_0dbd_174f454655a_4e52%4001): failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests