our requirment is we need to modify the standard theme with custom theme.
To do so, we have added the custom theme in portal Desktop and added in the Portal main rules.
As a result, the following error is displayed
Error occurred while trying to access desktop: "portal_content/ themes/ESSid". The object does not exist or you are not authorized to access it. If this problem persists, contact your system administrator.
FYI : ESSid in the error message is the id of the custom theme
now we are unable to access the Portal screen.
Please let us know the way ahead.