Unable to update Wordpress due to missing "Apache mpm package installed"

When I log into my dashboard I get “Wordpress 3.8 is available, please update now”

I ran the sequence as recommended by the following email:

“I would suggest following along with this community help article to walk you through the entire process of securely updating your wordpress instance: https://digitalocean.com/community/articles/how-to-configure-secure-updates-and-installations-in-wordpress-on-ubuntu”

Everything went smooth until the very end when I tried to restart apache “sudo service apache2 restart” and got the following response;

“root@WarrentTek:/var/www# sudo service apache2 restart No apache MPM package installed root@WarrentTek:/var/www#”

I then received guidance to try the following command;

root@WarrentTek:/# apt-get purge apache2mpm-prefork&&apt-get install -y apache2- mpm-prefork Reading package lists

And got the following result:

“… Done Building dependency tree Reading state information… Done E: Unable to locate package apache2mpm-prefork root@WarrentTek:/# sudo service apache2 restart No apache MPM package installed root@WarrentTek:/#”

Please help… I am at a loss of how to fix this.