Title: Memory limit confusion (installing Plugin)
Last modified: February 10, 2018

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# Memory limit confusion (installing Plugin)

 *  [surrelleric](https://wordpress.org/support/users/surrelleric/)
 * (@surrelleric)
 * [8 years, 3 months ago](https://wordpress.org/support/topic/memory-limit-confusion-installing-plugin/)
 * When i try to activate WPBakery Page Builder (Modified Version) which came with
   a theme, wordpress tells me the following:
 * Plugin could not be activated because it triggered a fatal error.
    Fatal error:
   Cannot redeclare class Vc_Manager in /var/www/vhosts/surrellusion.at/httpdocs/
   wp-content/plugins/js_composer_theme/js_composer.php on line 33
 * Also on the general Plugin Site, it writes:
    Please resolve these issues for 
   maximum compatibility! WordPress Memory Limit: 40M, memory_limit should be at
   least 96MB. Increasing memory allocated to PHP
 * But in my PHP Settings the memory limit is already set to 128MB.
 * What can i do, or where do i ask for support on this matter?
 * Cheers,
    Erik
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmemory-limit-confusion-installing-plugin%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  [Simon Prosser](https://wordpress.org/support/users/pross/)
 * (@pross)
 * [8 years, 3 months ago](https://wordpress.org/support/topic/memory-limit-confusion-installing-plugin/#post-9956279)
 * If you use a commercial theme or plugin and need support, please go to their 
   official support channel. In order to be good stewards of the WordPress community,
   and encourage innovation and progress, we feel it’s important to direct people
   to those official locations.
 * `https://codecanyon.net/item/visual-composer-page-builder-for-wordpress/242431/
   comments`
    `https://themeforest.net/item/jupiter-multipurpose-responsive-theme/
   5177775/support`
 * Forum volunteers are also not given access to commercial products, so they would
   not know why your commercial theme or plugin is not working properly. This is
   one other reason why volunteers forward you to the commercial product’s vendors.
   The vendors are responsible for supporting their commercial product.

Viewing 1 replies (of 1 total)

The topic ‘Memory limit confusion (installing Plugin)’ is closed to new replies.

## Tags

 * [php](https://wordpress.org/support/topic-tag/php/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [Simon Prosser](https://wordpress.org/support/users/pross/)
 * Last activity: [8 years, 3 months ago](https://wordpress.org/support/topic/memory-limit-confusion-installing-plugin/#post-9956279)
 * Status: not resolved

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