尝试续订SSL证书后，我的网站目前存在问题。
I've done all the steps mentionned in this tutorial : https://www.digitalocean.com/community/tutorials/how-to-install-an-ssl-certificate-from-a-commercial-certificate-authority
在最后一部分，当我必须输入sudo service apache2 restart行时，收到以下错误消息：
sudo service apache2 restart
Job for apache2.service failed because the control process exited with error code.
See "systemctl status apache2.service" and "journalctl -xe" for details.
systemctl status apache2.service
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: failed (Result: exit-code) since Mon 2020-05-18 00:18:34 UTC; 6s ago
Process: 4867 ExecStop=/usr/sbin/apachectl stop (code=exited, status=0/SUCCESS)
Process: 7254 ExecStart=/usr/sbin/apachectl start (code=exited, status=1/FAILURE)
Main PID: 1045 (code=exited, status=0/SUCCESS)
May 18 00:18:34 systemd[1]: Starting The Apache HTTP Server...
May 18 00:18:34 apachectl[7254]: Action 'start' failed.
May 18 00:18:34 apachectl[7254]: The Apache error log may have more information.
May 18 00:18:34 systemd[1]: apache2.service: Control process exited, code=exited status=1
May 18 00:18:34 systemd[1]: apache2.service: Failed with result 'exit-code'.
May 18 00:18:34 systemd[1]: Failed to start The Apache HTTP Server.
apache2ctl configtest
Syntax OK
apachectl configtest
Syntax OK
我尝试使用configtest configtest命令查看是否有任何synthx错误，但一切似乎都还不错。
When I try to access the folder /usr/sbin/apachectl by sFTP, we can see this error message: Directory /usr/sbin/apache2ctl: no such file or directory
仅作为您的参考，处理这种事情真的不是我的工作，对此我几乎一无所知。任何帮助将非常感激。谢谢！
