"CatTools DB encryption key Exchange" window prompt to update CatTools Database Password after upgrading to CatTools version 3.12.4

Starting with CatTools version 3.12.4, Database encryption is now enforced in compliance with the Security Feature added to CatTools.

After the upgrade and upon opening the CatTools Manager Console, a "CatTools DB encryption key Exchange" window will be prompted to enter the previous password and new password:

Once the encryption steps above have been completed, every time the CatTools Manager Console is launched, a created password key is required to use the database.

Ref: KCT 3.12.4 release notes 

• Security Feature Update to CatTools

If no database password has been created before:

Existing password key: Keep it Blank
New Password key: Create a complex password
Confirm new Password key: Retype the created complex password
***Please be sure to back up the password as this encryption cannot be retrieved and might cause you to lose your database access.

If a database password has been created before:

Existing password key: Enter the existing key
New Password key: Create a complex password
Confirm new Password key: Retype the created complex password
***SolarWinds cannot recover the password for the database.

If the password was already forgotten, a new database might be needed.
Try to export activity and export devices then import it on the new database.
For export reference:
Export devices to tab delimited file
Export activities to tab delimited file