I have caused a major problem with my site. I have tried to add a slug to the link.

So instead of..


I now have...


However the changes I have made to my htaccess file have now affected all the other links on my site which run from a query. Can anyone advise how to amend the htacess file just so it impacts on products.

Options -Indexes
    Options -MultiViews
    Options +FollowSymLinks

    # Prevent viewing of htaccess file
    <Files ~ "^\.ht">
    order allow,deny
    deny from all
    satisfy all

    # Disable directory listing from this point
    Options -Indexes

    # Error Pages
    ErrorDocument 404 /404-error.php

    # Rewrite Rules
    <IfModule mod_rewrite.c>
    RewriteEngine on
      RewriteCond %{REQUEST_FILENAME} !-f
      RewriteCond %{REQUEST_FILENAME} !-d
      RewriteRule ^products/product/([0-9]+)/(.*)$ products/product.php?product_id=$1 [QSA,L]
      RewriteRule ^articles/article/([0-9]+)/(.*)$ articles/article.php?ID=$1 [QSA,L]
        RewriteRule ^articles/articlesfiltered/([A-Za-z]+)/(.*)$ articles/articlesfiltered.php?articlecategory=$1 [QSA,L]
      RewriteRule ^plusstyle/plusstyle/([0-9]+)/(.*)$ plusstyle/plusstyle.php?ID=$1 [QSA,L]
       RewriteRule ^plusstyle/plusstylesfiltered/([A-Za-z]+)/(.*)$ plusstyle/plusstylesfiltered.php?articlecategory=$1 [QSA,L]
         RewriteRule ^([a-z]+)/([a-z\-]+)$ /$1/$2.php [QSA,L]