网址：https : //vishnubathala.com/
**Error**
Subject: www.example.com
Issuer: www.example.com
Expires on: Aug 3, 2027
Current date: Nov 9, 2017
PEM encoded chain:
-----BEGIN CERTIFICATE-----
MIICsDCCAZgCCQDghBagwkXvoDANBgkqhkiG9w0BAQsFADAaMRgwFgYDVQQDDA93
d3cuZXhhbXBsZS5jb20wHhcNMTcwODA0MTIxNDAzWhcNMjcwODAyMTIxNDAzWjAa
MRgwFgYDVQQDDA93d3cuZXhhbXBsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IB
DwAwggEKAoIBAQDJtN/s4VlruDpshzeRsdhi3AIobpNHOA0n5oCCgMqZH89M2NTW
yxnau116LUwgBAehawRgfaqmy/lY51WUmE7c0otuFJzssCBzQ2hUwBwWLOVmZTta
hwX2EqDrQ1JZWiAXSMO5ljwq+RrUyxZXSxvqIBVctIlgkMOYZRaXtXnkCtos5YL8
GNbMBwrhhUgk7SYcMH4y8u8L2oAudCI1v4oih7WRz0W20FWzLRYZjjZOpDiiBPG/
BlOXzWKkt/HW/URwQUejharNUQmrmvPiwnbXpR52wcqWS2eSyAhjapj7mmcrbTyA
wDyI8uFRD0LgMGdzHa6WkUykEaJLNux3rPXXAgMBAAEwDQYJKoZIhvcNAQELBQAD
ggEBAIwQo04ESpiWOR4pRv+V+DTDdSoEO7AARADD6pmiuraA/qL9HA+kfgxFWpdH
iKiWERTOFLhyjkkeE/eTRDdJwNMVubu0HFSASkfciKlX7HkLBmA1cCEOrUIvMfH0
mDGpolc50jKQt+JSF1qtiyrvy2P8ccAhyG+Ub4EzZddVRWbio87v0Iiho4OtjcLQ
x1vlxq5rKUzcbF7JTY8dt3fntFFKFU3aLI2eoYxuqeQFod6AcTSgCI81vES1FevN
bVbad9bTpGs9f4IhF/Dm9dRvV79n3eV2IsNMyE9HxdEfz900PblsjvpRz+I4Xwkn
6h9BQWroYn3GfzbvOML1HlPLvNo=
-----END CERTIFICATE-----
我按照 ubuntu 14.04 版本的 certbot 中的安装步骤操作，但我不确定服务器会发生什么我收到此错误我该如何解决此错误？
我不确定我的配置是否正确通过我想在没有任何错误的情况下配置它请帮我解决这个问题
ssl-certificate amazon-web-services ubuntu-14.04 lets-encrypt certbot