启用Let's Encrypt一直失败，阿里云的域名，请教一下怎么解决，谢谢

AccessKey信息都是对的，也是按照教程格式写的，但是第一步就失败，试了很多次也不行，求指点，谢谢。域名的DNS用的是vip1.alidns.com, vip2.alidns.com Please enter your DNS provider: ali Syntax: export Key1=Value1 ; export Key2=Value1
Please enter your dnsapi parameters: export Ali_Key=abcdefg ; export Ali_Secret=abcdefg [Mon Feb 11 10:14:03 CST 2019] Registering account
[Mon Feb 11 10:14:06 CST 2019] Register account Error: {"type":"urn:ietf: params:acme:error:malformed","detail":"Invalid Content-Type header on POST. Content-Type must be \"application/jose+json\"","status": 415}
[Mon Feb 11 10:14:06 CST 2019] Please add '--debug' or '--log' to check more details.
[Mon Feb 11 10:14:06 CST 2019] See: https://github.com/Neilpang/acme.sh/wiki/How-to-debug-acme.sh
Error: Create Let's Encrypt SSL Certificate failed!