Webmail does not show "Shared folders" section or the shared folders are not loading

Answer

Overview

• Webmail and KCC does not show the "Shared Folders" section
• Also, an error might pop up when users login to their accounts: "Failed to get shared folders, server error"
• Error log or debug log with "Delegation" messages enabled might show SQLite errors, without pointing to a specific file
• While webmail/KCC exhibits the issue, all seems to be working fine with KOFF and/or other clients (Android mail, iOS mail, Apple Mail)

Procedure

1. Stop Kerio Connect service (Windows, macOS, and Linux)
2. Navigate to the Kerio Connect mailstore folder, by default:
   • Windows: C:\Program Files\Kerio\MailServer\store\mail
   • Linux: opt/kerio/mailserver/store/mail
   • MacOS: usr/bin/kerio/mailserver/store/mail

3. Move the following files to an external directory.
   NOTE: the below files may not be visible in macOS/Linux, as they are inherently hidden. If you are unable to see those files, you can either use a Terminal session to achieve the file movement, or enabling macOS/Linux flags to display hidden files in the UI.
   
   • .caldav.db
   • .caldav.db.bak
   • .carddav.db
   • .carddav.db.bak
4. Start Kerio Connect server and allow a bit of time for the files to be recreated by the service