Title: free version activation error
Last modified: February 27, 2021

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# free version activation error

 *  Resolved [werfpsa](https://wordpress.org/support/users/werfpsa/)
 * (@werfpsa)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/free-version-activation-error/)
 * Try to activate the installed free version on a Synology NAS server on single
   instance WordPress (latest version) via plugin new and also via zip file. I get
   the following error:
    Warning: session_start(): open(/var/services/tmp/sess_1473167ee01ca711d7d5babd40c3fbbe,
   O_RDWR) failed: Permission denied (13) in /volume1/web/campo/wp-content/plugins/
   vikbooking/libraries/adapter/session/handler.php on line 31 Call Stack: 0.0001
   373096 1. {main}() /volume1/web/campo/wp-admin/admin.php:0 0.0001 373576 2. require_once(‘/
   volume1/web/campo/wp-load.php’) /volume1/web/campo/wp-admin/admin.php:34 0.0002
   374264 3. require_once(‘/volume1/web/campo/wp-config.php’) /volume1/web/campo/
   wp-load.php:37 0.0002 375616 4. require_once(‘/volume1/web/campo/wp-settings.
   php’) /volume1/web/campo/wp-config.php:101 1.6930 13238616 5. do_action() /volume1/
   web/campo/wp-settings.php:557 1.6930 13238992 6. WP_Hook->do_action() /volume1/
   web/campo/wp-includes/plugin.php:484 1.6930 13238992 7. WP_Hook->apply_filters()/
   volume1/web/campo/wp-includes/class-wp-hook.php:311 1.7682 13654584 8. JSessionHandler::
   start() /volume1/web/campo/wp-includes/class-wp-hook.php:287 1.7682 13654584 
   9. session_start() /volume1/web/campo/wp-content/plugins/vikbooking/libraries/
   adapter/session/handler.php:31 Warning: session_start(): Failed to read session
   data: files (path: /var/services/tmp) in /volume1/web/campo/wp-content/plugins/
   vikbooking/libraries/adapter/session/handler.php on line 31 Call Stack: 0.0001
   373096 1. {main}() /volume1/web/campo/wp-admin/admin.php:0 0.0001 373576 2. require_once(‘/
   volume1/web/campo/wp-load.php’) /volume1/web/campo/wp-admin/admin.php:34 0.0002
   374264 3. require_once(‘/volume1/web/campo/wp-config.php’) /volume1/web/campo/
   wp-load.php:37 0.0002 375616 4. require_once(‘/volume1/web/campo/wp-settings.
   php’) /volume1/web/campo/wp-config.php:101 1.6930 13238616 5. do_action() /volume1/
   web/campo/wp-settings.php:557 1.6930 13238992 6. WP_Hook->do_action() /volume1/
   web/campo/wp-includes/plugin.php:484 1.6930 13238992 7. WP_Hook->apply_filters()/
   volume1/web/campo/wp-includes/class-wp-hook.php:311 1.7682 13654584 8. JSessionHandler::
   start() /volume1/web/campo/wp-includes/class-wp-hook.php:287 1.7682 13654584 
   9. session_start() /volume1/web/campo/wp-content/plugins/vikbooking/libraries/
   adapter/session/handler.php:31`
 * This error is continuous displayed on the wp-admin screens.

Viewing 1 replies (of 1 total)

 *  Plugin Author [e4jvikwp](https://wordpress.org/support/users/e4jvikwp/)
 * (@e4jvikwp)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/free-version-activation-error/#post-14115410)
 * Hi,
 * Thanks for the detailed log. We see you have also reported the same issue via
   email to our team, so feel free to continue using our website for such technical
   questions.
 * We are not system engineers, if this problem was related to programming, then
   it would not have been a problem for us, but in this case we had to look up on
   the Internet what could be the possible causes of the “Permission Denied (error
   code 13)” related to the PHP Session.
    We understand that you are not getting
   any similar issue with other plugins, but that’s only because they just don’t
   use the PHP’s native Session handler.
 * By surfing the Internet and by looking for the warning message you get, we have
   found that the /tmp folder of your server is not writable. Please refer to this
   topic on Stackoverflow:
    [https://stackoverflow.com/questions/6821532/php-warning-permission-denied-13-on-session-start](https://stackoverflow.com/questions/6821532/php-warning-permission-denied-13-on-session-start)
 * You should get in touch with your hosting company by reporting the full warning
   message of your server. It’s an issue related to the PHP Session, and so it should
   be easy for them to resolve it.
 * We hope this helps!
 * The VikWP Team

Viewing 1 replies (of 1 total)

The topic ‘free version activation error’ is closed to new replies.

 * ![](https://ps.w.org/vikbooking/assets/icon-256x256.png?rev=1855707)
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## Tags

 * [activate error](https://wordpress.org/support/topic-tag/activate-error/)
 * [permission denied](https://wordpress.org/support/topic-tag/permission-denied/)

 * 1 reply
 * 2 participants
 * Last reply from: [e4jvikwp](https://wordpress.org/support/users/e4jvikwp/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/free-version-activation-error/#post-14115410)
 * Status: resolved