我正在尝试设置一个子域，但是在启用它并重新加载 apache 后，出现此错误：
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显示：
● apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2)
Active: active (running) (Result: exit-code) since Tue 2015-09-01 01:03:23 UTC; 10h ago
Docs: man:systemd-sysv-generator(8)
Process: 5359 ExecReload=/etc/init.d/apache2 reload (code=exited, status=1/FAILURE)
CGroup: /system.slice/apache2.service
├─2732 /usr/sbin/apache2 -k start
├─2733 /usr/sbin/apache2 -k start
├─2734 /usr/sbin/apache2 -k start
├─2735 /usr/sbin/apache2 -k start
├─2736 /usr/sbin/apache2 -k start
├─2841 /usr/sbin/apache2 -k start
├─4037 SCREEN -d -m -S hft-run
├─4040 /bin/sh
├─4041 tail -n0 -f -s 0.01 /home/duke/script.txt
├─4043 /bin/sh
├─4044 tee -a /home/duke/script2.txt
├─4054 SCREEN -d -m -S hft-script
├─4057 /bin/sh
Sep 01 11:30:12 rx-texas systemd[1]: Reloading LSB: Apache2 web server.
Sep 01 11:30:12 rx-texas apache2[5320]: Reloading web server: apache2 failed!
Sep 01 11:30:12 rx-texas apache2[5320]: Apache2 is not running ... (warning).
Sep 01 11:30:12 rx-texas systemd[1]: apache2.service: Control process exited, code=exited status=1
Sep 01 11:30:12 rx-texas systemd[1]: Reload failed for LSB: Apache2 web server.
Sep 01 11:34:21 rx-texas systemd[1]: Reloading LSB: Apache2 web server.
Sep 01 11:34:21 rx-texas apache2[5359]: Reloading web server: apache2 failed!
Sep 01 11:34:21 rx-texas apache2[5359]: Apache2 is not running ... (warning).
Sep 01 11:34:21 rx-texas systemd[1]: apache2.service: Control process exited, code=exited status=1
Sep 01 11:34:21 rx-texas systemd[1]: Reload failed for LSB: Apache2 web server.
以下是 journalctl -xe 日志：http://pastebin.com/wc7XFmpG
并 apache2ctl configtest展示Syntax OK
我正在运行 Apache/2.4.16 (Debian sid)