Resolving "File is not a valid LiteDB database format" Error

Issues Last updated: Tuesday, June 30, 2026 4:53 PM


If you encounter an error similar to the following:

LiteDB.LiteException: File is not a valid LiteDB database format or contains an invalid password.

This typically occurs when upgrading from version 2.1 to 2.2 or 2.3.

Steps to Resolve

  1. Navigate to the folder:
   C:\ProgramData\Fungusware\Xackup
  1. Confirm you have a recent backup-xackup-jobs.json file in this folder.
  2. Shut down Xackup.
  3. Rename xackup-jobs.db to xackup-jobs.xxx.
  4. Start Xackup.
  5. If no errors appear, go to the File menu and select Restore Jobs Database. This will import the most recent jobs backup.

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