.html site 500 internal server error

Ok I've read a lot of threads, tried a lot of fixes and cannot get my site to show up now. My .htaccess is this:

AddType text/html .shtml
AddHandler server-parsed .html
AddHandler server-parsed .shtml
AddType x-httpd-php .php .htm .html
Options Indexes FollowSymLinks Includes

<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteBase /
	RewriteCond %{REQUEST_FILENAME} ^(.*).htm [NC,OR]
	RewriteCond %{REQUEST_FILENAME} ^(.*).html [NC]
	RewriteRule ^(.*)       /passthru.php?file=$1
</IfModule>

Code (markup):

This causes the 500 internal server error.

This for my .htaccess makes the site appear but the network ads do not show up, instead I get the [an error occurred while processing this directive]

AddType text/html .shtml
AddHandler server-parsed .html
AddHandler server-parsed .shtml
Options Indexes FollowSymLinks Includes

Code (markup):

What can I do to fix this so the ads will show and the site still shows up?

Christine

 

In my own experience error 500 occurs when mod_rewrite is not enable on your web server.

Uncomment #mod_rewrite in your httpd.conf, or if you are hosted on a shared service, ask your hosting provider if mod_rwrite is enabled.