Symptoms

Notification e-mails are not sent for watched content for any user. Additionally, the notifications might work only for attachments, failing on the rest of contents.

Cause

The "Page Notifications Listener" and "Comment Notifications Listener" that are related to this kind of notification via e-mail are disabled inside the Core Listeners system add-on (Confluence Admin > Manage add-ons > System plugins). Normally, all the modules inside the Core Listeners cannot be modified and show a "Module cannot be modified" message.

Resolution

1. Backup your database
2. Shutdown Confluence

3. Execute the following SQL query against your Confluence database (this will set all plugin modules back to their default enabled/disabled state, so be sure to check that all plugins are functioning as expected, especially the HTML Macros if you have them enabled):

   UPDATE BANDANA SET BANDANAVALUE = '<map/>' WHERE BANDANAKEY = 'plugin.manager.state.Map';

4. Restart Confluence
5. Check that your plugins are functioning as expected

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