着急！！！

微信接口请求突然报这个错误，基于此接口的业务全部瘫痪，请问怎么处理呀？

错误内容：

[ error ] [0]cURL error 6: Could not resolve host: api.weixin.qq.com; Unknown error (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://api.weixin.qq.com/sns/oauth2/component/access_token?appid=xxxx