Title: session_start(): Failed to initialize storage module: user (path: )
Last modified: August 22, 2016

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# session_start(): Failed to initialize storage module: user (path: )

 *  Resolved [seany187](https://wordpress.org/support/users/seany187/)
 * (@seany187)
 * [11 years, 8 months ago](https://wordpress.org/support/topic/session_start-failed-to-initialize-storage-module-user-path/)
 * We just migrated our new network site to “Pantheon” and everything works great
   except we get a white screen of death from Custom Sidebars. Here is the error
   log. Any ideas?
 * session_start(): Failed to initialize storage module: user (path: )wp-content/
   plugins/custom-sidebars/inc/external/wpmu-lib/functions-wpmulib.php:69
 * CALL STACK
    # Function Location 1 session_start() /wp-content/plugins/custom-
   sidebars/inc/external/wpmu-lib/functions-wpmulib.php:69 2 TheLib_1_0_13->__construct()/
   wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/core.php:43 3 unknown()/
   wp-content/plugins/custom-sidebars/customsidebars.php:67 4 inc_sidebars_free_init():
   null 5 call_user_func_array(inc_sidebars_free_init, Array ([0] => )) /wp-includes/
   plugin.php:505 6 do_action(plugins_loaded) /wp-settings.php:237 7 unknown() /
   wp-config.php:150 8 unknown() /wp-load.php:29 9 unknown() /wp-admin/admin.php:
   31 10 unknown() /wp-admin/plugins.php:10
 * [https://wordpress.org/plugins/custom-sidebars/](https://wordpress.org/plugins/custom-sidebars/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [seany187](https://wordpress.org/support/users/seany187/)
 * (@seany187)
 * [11 years, 8 months ago](https://wordpress.org/support/topic/session_start-failed-to-initialize-storage-module-user-path/#post-5388811)
 * Nevermind, I got it figured out. You need to install this plugin for it to work
   on Pantheon.
 * [https://wordpress.org/plugins/proper-network-activation/](https://wordpress.org/plugins/proper-network-activation/)
 *  [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/)
 * (@wpmudev-support1)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/session_start-failed-to-initialize-storage-module-user-path/#post-5389000)
 * Hi [@seany187](https://wordpress.org/support/users/seany187/),
 * Awesome, great to see you got it figured out and thanks for sharing the solution
   in the community.
 * I hope the solution that you have shared will help others facing the similar 
   issue.
 * Please advise if you have more questions.
 * Have a fantastic day!
 * Cheers,
    WPMU DEV
 *  [masilva](https://wordpress.org/support/users/masilva/)
 * (@masilva)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/session_start-failed-to-initialize-storage-module-user-path/#post-5389119)
 * Thank you so much!!!
 * I’m also using Pantheon and plugin solved the problem.
 * Cheers

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘session_start(): Failed to initialize storage module: user (path: )’ 
is closed to new replies.

 * ![](https://ps.w.org/custom-sidebars/assets/icon-256x256.png?rev=1414065)
 * [Custom Sidebars - Dynamic Sidebar Classic Widget Area Manager](https://wordpress.org/plugins/custom-sidebars/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/custom-sidebars/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/custom-sidebars/)
 * [Active Topics](https://wordpress.org/support/plugin/custom-sidebars/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/custom-sidebars/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/custom-sidebars/reviews/)

 * 3 replies
 * 3 participants
 * Last reply from: [masilva](https://wordpress.org/support/users/masilva/)
 * Last activity: [10 years, 11 months ago](https://wordpress.org/support/topic/session_start-failed-to-initialize-storage-module-user-path/#post-5389119)
 * Status: resolved