Permalinks redirect error

I installed the permalinks plugin and tested it by accessing the 401 error page. When I try and create a custom permalink however I was taken to the error page. I think this was a cache issue as the problem resolved itself after clearing my browser, however I'm noticing 2 other problems.

1. Removing www from the address takes me to the error page

2. A PHP error from permalinks_dispatcher.php shows up on top

I've entered the fields into the cms as follows:

permalink: contact

source url: /subdirectory/contact.php

My CMS is installed in: domain.com/cms

I've received the following PHP errors so far

Notice: Undefined index: QUERY_STRING in /hermes/bosoraweb059/b144/ipw.quallsgr/public_html/domain/cms/plugins/permalinks_dispatcher.php on line 78 Fatal error: Cannot redeclare getrecords() (previously declared in /hermes/bosoraweb059/b144/ipw.quallsgr/public_html/domain/cms/lib/viewer_functions.php:55) in /hermes/bosoraweb059/b144/ipw.quallsgr/public_html/cms/lib/viewer_functions.php on line 145

Notice: Undefined index: QUERY_STRING in /hermes/bosoraweb059/b144/ipw.quallsgr/public_html/domain/cms/plugins/permalinks_dispatcher.php on line 78

My htaccess file is below:

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /
  RewriteRule ^permalinks_dispatcher\.php$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule . /cms/plugins/permalinks_dispatcher.php [L]
 
  ### Optional SEO: Uncomment the rewrite* lines below to remove www. from all pages so you don't have duplicate urls.
  ### Source: http://stackoverflow.com/questions/234723/generic-htaccess-redirect-www-to-non-www
  ##RewriteCond %{HTTPS} off
  ##RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
  #RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
 
  ##RewriteCond %{HTTPS} on
  ##RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
  ##RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
  ### End: Optional SEO
 
  RewriteCond %{HTTP_HOST} ^domain.com
  RewriteRule (.*) http://www.domain.com/$1 [R=301,L]

  ### Optional Security: Uncomment the rewrite* lines below to force secure HTTPS:// connections for all pages.
  ### NOTE: Make sure https:// urls work on your server before enabling this.
  #RewriteCond %{HTTPS} off
  #RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]
  ### End: Optional Security

</IfModule>