i follow your instructions regarding how to enable the caching of my server, i put this on my .htaccess file but when i load the page, i get a 500 error from apache.

this is my htaccess code:

ExpiresActive On
ExpiresByType image/ico A15552000
ExpiresByType image/gif A31556926
ExpiresByType image/png A31556926
ExpiresByType image/jpg A31556926
ExpiresByType image/jpeg A31556926
ExpiresByType text/javascript A31556926
ExpiresByType text/css A31556926
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$">
Header set Cache-Control "max-age=31556926, public"
</FilesMatch>