Title: Fatal error: Undefined constant “B2S_PLUGIN_USER_VERSION”
Last modified: April 11, 2025

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# Fatal error: Undefined constant “B2S_PLUGIN_USER_VERSION”

 *  Resolved [sanhosey](https://wordpress.org/support/users/sanhosey/)
 * (@sanhosey)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/fatal-error-undefined-constant-b2s_plugin_user_version/)
 * Hello, I have a problem with your plugin in version 8.3.4 I get the following
   error at the subpage ‘Help and Support’: Fatal error: Uncaught Error: Undefined
   constant ‘B2S_PLUGIN_USER_VERSION’ in xxx/wp-content/plugins/blog2social/views/
   b2s/html/sidebar.php:49
 * Best regards

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Blog2Social-Support](https://wordpress.org/support/users/blog2socialsupport/)
 * (@blog2socialsupport)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/fatal-error-undefined-constant-b2s_plugin_user_version/#post-18411148)
 * Hello,
 * Thank you for reaching out.
 * It seems there are issues with your website connecting to our server. Have you
   ensured that outgoing connections from your website are allowed?
   Are you also
   receiving an error message when accessing the Blog2Social dashboard?
 * If you’re receiving the error “_The connection to the server failed_” or “_Connection
   is broken_”, please send us the information you’re receiving when clicking the“
   _Debug Connection_” button [HERE](https://service.blog2social.com/question?o=faq).
 * Looking forward to your reply.
 *  Thread Starter [sanhosey](https://wordpress.org/support/users/sanhosey/)
 * (@sanhosey)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/fatal-error-undefined-constant-b2s_plugin_user_version/#post-18411155)
 * Hello,
 * thanks for the quick response! We do not receive any information here only the
   following:
 * _hidden_
   Best regards
    -  This reply was modified 1 year, 2 months ago by [sanhosey](https://wordpress.org/support/users/sanhosey/).
 *  [Blog2Social-Support](https://wordpress.org/support/users/blog2socialsupport/)
 * (@blog2socialsupport)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/fatal-error-undefined-constant-b2s_plugin_user_version/#post-18411209)
 * Thanks for your reply.
 * We kindly ask that you contact us [HERE](https://service.blog2social.com/question?o=faq)
   with this information and remove it from your latest response to protect your
   privacy.
 *  Thread Starter [sanhosey](https://wordpress.org/support/users/sanhosey/)
 * (@sanhosey)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/fatal-error-undefined-constant-b2s_plugin_user_version/#post-18411232)
 * Hello, I have removed the information from my previous reply and sent it via 
   the link you provided.
   Best regards

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Fatal error: Undefined constant “B2S_PLUGIN_USER_VERSION”’ is closed 
to new replies.

 * ![](https://ps.w.org/blog2social/assets/icon-256x256.png?rev=3076476)
 * [Blog2Social: Social Media Auto Post & Scheduler](https://wordpress.org/plugins/blog2social/)
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 * 4 replies
 * 2 participants
 * Last reply from: [sanhosey](https://wordpress.org/support/users/sanhosey/)
 * Last activity: [1 year, 2 months ago](https://wordpress.org/support/topic/fatal-error-undefined-constant-b2s_plugin_user_version/#post-18411232)
 * Status: resolved