Management Portal error "Error: Your changes were not saved because of an error. Please try again." (4259871)

When clicking on "Save" on any page in the Management Portal | Self-Service Settings (General, Software Tokens, Hardware Tokens, E-mail settings, PIN Settings tabs) you receive the error: "Error:  Your changes were not saved because of an error. Please try again."

On the General tab, ensure the "Create token objects in:" is set to a location that exists. Then click Save.

If this step does not resolve this issue, it may be necessary to restart the management portal with a new configuration.  To do this, the selfreg.sdf file must be recreated.  Ensure that all the pertinent configuration options have been backed up.

This file is located on the following path:

C:\Program Files\One Identity\Defender\Management Portal\WWW\App_Data

In the server where the management portal is installed.

Rename the selfreg.sdf to selfreg.old.

Open a command prompt with administrator privileges and execute the following command: iisreset.

This will force Management Portal to recreate the file.  Management portal will need to be reconfigured completely.