Caching with Hummingbird

The plugin is not allowing me to enable caching. I switched themes and not the caching no longer works. It is giving me this error.

Browser Caching is not working properly:

– Your server may not have the “expires” module enabled (mod_expires for Apache, ngx_http_headers_module for NGINX)

– Another plugin may be interfering with the configuration

I have checked the plugins and there is nothing that should be affecting the caching.

Here is the htaccess file information as well.

# BEGIN WordPress

<IfModule mod_rewrite.c>

RewriteEngine On

RewriteBase /

RewriteRule ^index.php$ – [L]

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule . /index.php [L]

</IfModule>

# END WordPress

# DENY ACCESS TO WP-CONFIG

<files wp-config.php>

order allow,deny

deny from all

</files>

# BEGIN WP-HUMMINGBIRD-CACHING

<IfModule mod_expires.c>

ExpiresActive On

ExpiresDefault A0

<FilesMatch “.(txt|xml|js)$”>

ExpiresDefault A691200

</FilesMatch>

<FilesMatch “.(css)$”>

ExpiresDefault A691200

</FilesMatch>

<FilesMatch “.(flv|ico|pdf|avi|mov|ppt|doc|mp3|wmv|wav|mp4|m4v|ogg|webm|aac)$”>

ExpiresDefault A691200

</FilesMatch>

<FilesMatch “.(jpg|jpeg|png|gif|swf|webp)$”>

ExpiresDefault A691200

</FilesMatch>

</IfModule>

<IfModule mod_headers.c>

<FilesMatch “.(txt|xml|js)$”>

Header set Cache-Control “max-age=691200”

</FilesMatch>

<FilesMatch “.(css)$”>

Header set Cache-Control “max-age=691200”

</FilesMatch>

<FilesMatch “.(flv|ico|pdf|avi|mov|ppt|doc|mp3|wmv|wav|mp4|m4v|ogg|webm|aac)$”>

Header set Cache-Control “max-age=691200”

</FilesMatch>

<FilesMatch “.(jpg|jpeg|png|gif|swf|webp)$”>

Header set Cache-Control “max-age=691200”

</FilesMatch>

</IfModule>

# END WP-HUMMINGBIRD-CACHING