[Plugin: W3 Total Cache] – 500 Internal Server Error..

Hi, fredericktownes
First of all thanks for your support on W3TC.I like it a lot !

My site is : Ezzal – Free Online Games
I was using the W3 Total Cache Beta version with WordPress 3 that I got from your mail.

And just today I noticed the new version notice, so I tried to upgrade it automatically and It asked me to overwrite the .htaccess file. So I did..
but now I’m getting “500- Internal Server Error” all around my site.
Then I tried to change the .htaccess back to default and used Disk Cache for page cache and it works normally.
It shows error only when I use “Disk Enhanced” method.

I tried to edit the contents of .htacess manually too.. same problem.

Can you please help me to solve this ? I used “Disk Enhanced” method without any problem with the “beta” version.. so I want to use the “Enhanced” method again.I know that my server supports it. I use a VPS from https://www.vps.net

Please help.

Thank you.

I noticed this block in htaccess is giving error (used for Enhanced mode ?)

# BEGIN W3TC Page Cache
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    RewriteCond %{HTTP_USER_AGENT} (iPhone|iPad|iPod|Android|BlackBerry9530|LG-TU915 Obigo|LGE VX|webOS|Nokia5800) [NC]
    RewriteRule .* - [E=W3TC_UA:_touch]
    RewriteCond %{HTTP_USER_AGENT} (2.0 MMP|240x320|ASUS|AU-MIC|Alcatel|Amoi|Audiovox|AvantGo|BenQ|Bird|BlackBerry|Blazer|CDM|Cellphone|DDIPOCKET|Danger|DoCoMo|Elaine/3.0|Ericsson|EudoraWeb|Fly|HP.iPAQ|Haier|Huawei|IEMobile|J-PHONE|KDDI|KONKA|KWC|KYOCERA/WX310K|LG|LG/U990|Lenovo|MIDP-2.0|MMEF20|MOT-V|MobilePhone|Motorola|NEWGEN|NetFront|Newt|Nintendo Wii|Nitro|Nokia|Novarra|O2|Opera Mini|Opera.Mobi|PANTECH|PDXGW|PG|PPC|PT|Palm|Panasonic|Philips|Playstation Portable|ProxiNet|Proxinet|Qtek|SCH|SEC|SGH|SHARP-TQ-GX10|SPH|Sagem|Samsung|Sanyo|Sendo|Sharp|Small|Smartphone|SoftBank|SonyEricsson|Symbian|Symbian OS|SymbianOS|TS21i-10|Toshiba|Treo|UP.Browser|UP.Link|UTS|Vertu|WILLCOME|WinWAP|Windows CE|Windows.CE|Xda|ZTE|dopod|hiptop|htc|i-mobile|nokia|portalmmm|vodafone) [NC]
    RewriteRule .* - [E=W3TC_UA:_mobile]
    RewriteCond %{HTTPS} =on
    RewriteRule .* - [E=W3TC_SSL:_ssl]
    RewriteCond %{SERVER_PORT} =443
    RewriteRule .* - [E=W3TC_SSL:_ssl]
    RewriteCond %{HTTP:Accept-Encoding} gzip
    RewriteRule .* - [E=W3TC_ENC:.gzip]
    RewriteCond %{REQUEST_METHOD} !=POST
    RewriteCond %{QUERY_STRING} =""
    RewriteCond %{REQUEST_URI} \/$
    RewriteCond %{REQUEST_URI} !(\/wp-admin\/|\/xmlrpc.php|\/wp-(app|cron|login|register|mail)\.php|wp-.*\.php|index\.php|submit-a-game|contact-us) [NC,OR]
    RewriteCond %{REQUEST_URI} (wp-comments-popup\.php|wp-links-opml\.php|wp-locations\.php) [NC]
    RewriteCond %{HTTP_COOKIE} !(comment_author|wp-postpass|wordpress_\[a-f0-9\]\+|wordpress_logged_in) [NC]
    RewriteCond "/home/ezzalco/public_html/wp-content/w3tc/pgcache/$1/_index%{ENV:W3TC_UA}%{ENV:W3TC_SSL}.html%{ENV:W3TC_ENC}" -f
    RewriteRule (.*) "/wp-content/w3tc/pgcache/$1/_index%{ENV:W3TC_UA}%{ENV:W3TC_SSL}.html%{ENV:W3TC_ENC}" [L]
</IfModule>
# END W3TC Page Cache

Compatibility check shows this
===============================

Server Modules & Resources:
PHP Version: 5.2.9
PHP Timezone: Not set
Web Server: Apache
FTP functions: OK (required for Self-hosted (FTP) CDN support)
Multibyte String support: OK (required for Rackspace Cloud Files support)
cURL extension: OK (required for Amazon S3 support)
zlib extension: OK (required for compression support)
Opcode cache: Not installed
Memcache extension: Not installed
Mime type detection: Mimetype
Hash function: hash (required for NetDNA purge support)
Safe mode: Off
Open basedir: Off
zlib output compression: Off
mod_mime: Not detected
mod_expires: Not detected
mod_deflate / mod_gzip: Not detected
mod_headers: Not detected
mod_env: Not detected
mod_setenvif: Not detected
mod_rewrite: Not detected
WordPress Resources
/home/xxxx/public_html/wp-content: Write-able
/home/xxxx/public_html/.htaccess Write-able

Uploads directory: Write-able
WP_CACHE define: OK
Fancy permalinks: OK
Network mode: Off

This is the htaccess code block that I before (beta version)

# BEGIN W3TC Page Cache
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    RewriteCond %{REQUEST_METHOD} !=POST
    RewriteCond %{QUERY_STRING} =""
    RewriteCond %{REQUEST_URI} \/$
    RewriteCond %{REQUEST_URI} !(\/wp-admin\/|\/xmlrpc.php|\/wp-(app|cron|login|register|mail)\.php|wp-.*\.php|index\.php) [NC,OR]
    RewriteCond %{REQUEST_URI} (wp-comments-popup\.php|wp-links-opml\.php|wp-locations\.php) [NC]
    RewriteCond %{HTTP_COOKIE} !(comment_author|wp-postpass|wordpress_\[a-f0-9\]\+|wordpress_logged_in) [NC]
    RewriteCond %{HTTP_USER_AGENT} (2\.0\ MMP|240x320|ASUS|AU-MIC|Alcatel|Amoi|Audiovox|AvantGo|BenQ|Bird|BlackBerry|Blazer|CDM|Cellphone|DDIPOCKET|Danger|DoCoMo|Elaine/3\.0|Ericsson|EudoraWeb|Fly|HP\.iPAQ|Haier|Huawei|IEMobile|J-PHONE|KDDI|KONKA|KWC|KYOCERA/WX310K|LG|LG/U990|Lenovo|MIDP-2\.0|MMEF20|MOT-V|MobilePhone|Motorola|NEWGEN|NetFront|Newt|Nintendo\ Wii|Nitro|Nokia|Novarra|O2|Opera\ Mini|Opera\.Mobi|PANTECH|PDXGW|PG|PPC|PT|Palm|Panasonic|Philips|Playstation\ Portable|ProxiNet|Proxinet|Qtek|SCH|SEC|SGH|SHARP-TQ-GX10|SPH|Sagem|Samsung|Sanyo|Sendo|Sharp|Small|Smartphone|SoftBank|SonyEricsson|Symbian|Symbian\ OS|SymbianOS|TS21i-10|Toshiba|Treo|UP\.Browser|UP\.Link|UTS|Vertu|WILLCOME|WinWAP|Windows\ CE|Windows\.CE|Xda|ZTE|dopod|hiptop|htc|i-mobile|nokia|portalmmm|vodafone) [NC]
    RewriteRule .* - [E=W3TC_UA:_mobile]
    RewriteCond %{HTTP_USER_AGENT} (iPhone|iPad|iPod|Android|BlackBerry9530|LG-TU915\ Obigo|LGE\ VX|webOS|Nokia5800) [NC]
    RewriteRule .* - [E=W3TC_UA:_touch]
    RewriteCond %{HTTPS} =on
    RewriteRule .* - [E=W3TC_SSL:_ssl]
    RewriteCond %{SERVER_PORT} =443
    RewriteRule .* - [E=W3TC_SSL:_ssl]
    RewriteCond %{HTTP:Accept-Encoding} gzip
    RewriteRule .* - [E=W3TC_ENC:.gzip]
    RewriteCond "/home/amint/public_html/wp-content/w3tc/pgcache/$1/_index%{ENV:W3TC_UA}%{ENV:W3TC_SSL}.html%{ENV:W3TC_ENC}" -f
    RewriteRule (.*) "/wp-content/w3tc/pgcache/$1/_index%{ENV:W3TC_UA}%{ENV:W3TC_SSL}.html%{ENV:W3TC_ENC}" [L]
</IfModule>
# END W3TC Page Cache

AND I noticed this sometimes in the error log.. maybe 3-4 times per day with beta release and now more often.

[23-Jul-2010 11:52:41] PHP Fatal error:  Allowed memory size of 33554432 bytes exhausted (tried to allocate 266990 bytes) in /home/xxx/public_html/wp-content/plugins/w3-total-cache/inc/define.php on line 223

Please tell me about that too.