Getting this error showing apache2 not starting

:~/Desktop # rcapache2 restart
Job for apache2.service failed. See "systemctl status apache2.service" and "journalctl -xn" for details.
this then reports
Feb 12 11:00:44 S4 start_apache2[3267]: AH00526: Syntax error on line 28 of /etc/apache2/default-server.conf:
Feb 12 11:00:44 S4 start_apache2[3267]: Invalid command 'Order', perhaps misspelled or defined by a module not included in the server configuration
Feb 12 11:00:44 S4 systemd[1]: apache2.service: main process exited, code=exited, status=1/FAILURE
Feb 12 11:00:44 S4 start_apache2[3298]: AH00526: Syntax error on line 28 of /etc/apache2/default-server.conf:
Feb 12 11:00:44 S4 start_apache2[3298]: Invalid command 'Order', perhaps misspelled or defined by a module not included in the server configuration
Feb 12 11:00:44 S4 systemd[1]: apache2.service: control process exited, code=exited status=1
Feb 12 11:00:44 S4 systemd[1]: Failed to start The Apache Webserver.
Feb 12 11:00:44 S4 systemd[1]: Unit apache2.service entered failed state.