I cant get Apache configure correctly El Capitan

I just went through the guide followed everything step by step. Still getting the 'Unable to Connect' message.

I tried accessing it through http://MacBook-Pro.local, and received the UtC (unable to connect) message

I also tried http://<your-local-host>, still nothing.

I even tried enabling File Sharing but I'm still not able to connect and see the "It Works!" message.

In Terminal I ran the command: apachectl configtest and this is what it returned:

'AH00526: Syntax error on line 20 of /private/etc/apache2/extra/httpd-mpm.conf:

Invalid command 'LockFile', perhaps misspelled or defined by a module not included in the server configuration'

What should I do? Appreciate your help

Ok so I solved part of the problem. I am now able to access http://macbook-pro.local and it shows the message 'It Works!' instead of the unable to connect. I did this by commenting out the following lines in: etc/apache2/extra/httpd-mpm.conf

# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
<IfModule !mpm_winnt_module>
<IfModule !mpm_netware_module>
  LockFile "/private/var/log/apache2/accept.lock"
</IfModule>
</IfModule>

I commented out the above lines and it has allowed me to connect to part of the server.

Now I still have a problem. When I try to connect to http://localhost/~<username>/ I get a '403 Forbidden' message saying 'You don't have permission to access /~<username> on this server.

After running apachectl -t this is the message Terminal returns:

AH00548: NameVirtualHost has no effect and will be removed in the next release /private/etc/apache2/extra/httpd-vhosts.conf:19

AH00112: Warning: DocumentRoot [/Users/~Programming/Sites/] does not exist

AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using MacBook-Pro.local. Set the 'ServerName' directive globally to suppress this message

Syntax OK

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How can I resolve this issue now?