BuddyPress.org

When trying to connect the keyring API plugin to connect to eventbrite, the process fails with the following error: Fatal error: Call to undefined function bp_blogs_delete_activity() in […]/wp-content/plugins/buddypress/bp-blogs/bp-blogs-functions.php on line 914

The eventbrite connection process requires you to authorise your WP site on their server with a redirect back to your site that includes auth nonces in the URL. This is the point it fails.

The keyring plugin tries to delete a post, which triggers the error. A temporary fix is to check the call to bp_blogs_delete_activity() with if (function_exists('bp_blogs_delete_activity')). This allows the authorisation of eventbrite to proceed.

It seems to me that the action bp_blogs_remove_post is being added in a way that does not guarantee that the file wp-content/plugins/buddypress/bp-blogs/bp-blogs-activity.php has been included.