Title: Activate for multisite
Last modified: August 31, 2016

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# Activate for multisite

 *  Resolved [semagoff](https://wordpress.org/support/users/semagoff/)
 * (@semagoff)
 * [10 years ago](https://wordpress.org/support/topic/activate-for-multisite/)
 * Activate the plugin error: Fatal error: Invalid opcode 153/1/8. in ///wp-content/
   plugins/boxzilla/src/class-boxzilla-service-provider.php on line 30
 * [https://wordpress.org/plugins/boxzilla/](https://wordpress.org/plugins/boxzilla/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Danny van Kooten](https://wordpress.org/support/users/dvankooten/)
 * (@dvankooten)
 * [10 years ago](https://wordpress.org/support/topic/activate-for-multisite/#post-7375054)
 * Hi Semagoff,
 * It seems that your server is running eAccelerator which is a PHP opcode cache.
   Unfortunately eAccelerator is very outdated and so it does not allow the use 
   of so-called “anonymous functions”, which is a PHP 5.3 feature.
 * Disabling eAccelerator will get rid of the error. You can do that by adding the
   following lines to your php.ini file.
 *     ```
       eaccelerator.enable = "0"
       eaccelerator.optimizer = "0"
       ```
   
 * If you don’t have access to your PHP ini configuration files but are running 
   Apache, the following in your **.htaccess** will also work.
 *     ```
       php_flag eaccelerator.enable 0
       php_flag eaccelerator.optimizer 0
       ```
   
 * If this is technical (sorry for it being technical), please ask your webhost 
   to disable eaccelerator for you which should be a matter of minutes for him.
 * Hope that helps. If not, let me know!

Viewing 1 replies (of 1 total)

The topic ‘Activate for multisite’ is closed to new replies.

 * ![](https://ps.w.org/boxzilla/assets/icon-256x256.png?rev=1414640)
 * [Boxzilla - WordPress Popup Builder](https://wordpress.org/plugins/boxzilla/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Danny van Kooten](https://wordpress.org/support/users/dvankooten/)
 * Last activity: [10 years ago](https://wordpress.org/support/topic/activate-for-multisite/#post-7375054)
 * Status: resolved