Title: [Plugin: W3 Total Cache] Cannot activate the plugin. Fatal Error
Last modified: August 20, 2016

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# [Plugin: W3 Total Cache] Cannot activate the plugin. Fatal Error

 *  Resolved [darkpollo](https://wordpress.org/support/users/darkpollo/)
 * (@darkpollo)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/)
 * I have tried several times, uploading by ftp, removing and installing several
   times.
    It doesnt work and i am not sure what to do next.
 * Of course i change the 777 chmod always.
 * Thanks for your help.
 * [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/)

Viewing 13 replies - 1 through 13 (of 13 total)

 *  [Andreas](https://wordpress.org/support/users/andreasnrb/)
 * (@andreasnrb)
 * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271870)
 * I see you’ve tried the standard ways. Problem is not getting the actual error,
   hard to pinpoint then.
    If you are conformable with editing a WordPress file.
   Add define(‘WP_DEBUG’,true); to wp-config.php. You can add it after * [@package](https://wordpress.org/support/users/package/)
   WordPress */ define(‘WP_DEBUG’,true); //goes here
 * Make sure there is no //, */ or /* before the define statement.
 * Now when you activate you should get an error message.
    If you do it would be
   very helpfull if you post it here.
 *  Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [14 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271873)
 * [@darkpollo](https://wordpress.org/support/users/darkpollo/), what are the errors
   in your web server error log?
 *  Thread Starter [darkpollo](https://wordpress.org/support/users/darkpollo/)
 * (@darkpollo)
 * [14 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271875)
 * Hi Frederick
 * We solved this by email several months ago.
 * I sent you an email with the problem.
 * Thanks
 *  [TheDLC](https://wordpress.org/support/users/thedlc/)
 * (@thedlc)
 * [14 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271879)
 * Can I see the solution that you guys worked out? I am having the same issue… 
   and sadly I cannot access your email.
 *  Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271884)
 * [@darkpollo](https://wordpress.org/support/users/darkpollo/), what’s your email
   address?
 *  Thread Starter [darkpollo](https://wordpress.org/support/users/darkpollo/)
 * (@darkpollo)
 * [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271885)
 * Hi, my email is darkpollo at planetahuevo dot es
    And this is the one i sent 
   you with the solution. This worked for me, not sure if this will work for others.
 * “Hi Frederick,
    i managed to install it. The problem were two, first, if you 
   install it without uploading, just from the WP admin site, it does not work (
   not sure why). Also, my wp-config was 444 for seurity reasons, so it needs to
   be 644 to activate the plugin.”
 * So, first, upload it manually using FTP.
    Look the wp-config permissions to make
   sure it is writable before to install.
 *  [news-reporter](https://wordpress.org/support/users/news-reporter/)
 * (@news-reporter)
 * [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271889)
 * wow, i too could not activate plugin. so you think i should not try installing
   it through my wp dashboard? – i don’t know how to upload manually using FTP, 
   i am a novice …
 *  Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271898)
 * [@news](https://wordpress.org/support/users/news/) reporter, can you send me 
   an email so I can try to help you?
 *  [frank tredici](https://wordpress.org/support/users/frank13/)
 * (@frank13)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271899)
 * Just tried installing…unsuccessful:
 * Plugin could not be activated because it triggered a **fatal error**.
 *  [frank tredici](https://wordpress.org/support/users/frank13/)
 * (@frank13)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271900)
 * Did this `define('WP_DEBUG',true);`
 * Activated again.
 * Got a number of warning notices **but the plugin installed**.
 * So I am moving forward. Can I assume your plugin will work now?
 *  [frank tredici](https://wordpress.org/support/users/frank13/)
 * (@frank13)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271901)
 * Got this error:
 * `It appears Page Cache URL rewriting is not working. If using apache, verify 
   that the server configuration allows .htaccess`
 * But I know that other things I put into my .htaccess work on my apache server.
 * So I don;t know what to do with this error.
 *  [frank tredici](https://wordpress.org/support/users/frank13/)
 * (@frank13)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271902)
 * In all honesty, the site runs poorer than it did before the install. Backing 
   it out.
 *  [bcr123psu](https://wordpress.org/support/users/bcr123psu/)
 * (@bcr123psu)
 * [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271903)
 * I’m also running into this same fatal error:
 * Parse error: syntax error, unexpected T_OBJECT_OPERATOR in [my website’s URL]/
   wp-content/plugins/w3-total-cache/lib/W3/PluginProxy.php on line 56
 * I’d love to be able to cache my site…any ideas on how to remedy this?
 * Thanks!

Viewing 13 replies - 1 through 13 (of 13 total)

The topic ‘[Plugin: W3 Total Cache] Cannot activate the plugin. Fatal Error’ is 
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 * 13 replies
 * 7 participants
 * Last reply from: [bcr123psu](https://wordpress.org/support/users/bcr123psu/)
 * Last activity: [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-cannot-activate-the-plugin-fatal-error/#post-2271903)
 * Status: resolved