lnmp证书问题：likely firewall problem
虚拟主机创建时候，启用证书，选择2在执行过程中，提示：
e3.example.com:Verify error:Fetching http://e3.example.com/.well-known/acme-challenge/JK5cUiXk_gPlgIlnkf2nmCUZhnFHRjQag5zriQoEI20: Timeout during connect (likely firewall problem)
Please check log file for more details: /usr/local/acme.sh/acme.sh.log
Let's Encrypt SSL Certificate create failed!
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Virtualhost infomation:
Your domain: e3.example.com
Home Directory: /home/wwwroot/e3.example.com
Rewrite: none
Enable log: yes
Create database: no
Create ftp account: no
Enable SSL: yes
=>Let's Encrypt
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请问下出现这个报错，是什么原因 你网站无法访问的话是肯定无法生成ssl证书的
确定自己网站是否能正常访问，并按反馈必读要求提供acme的日志
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