rename folder raise error

[Bug Importer]

I have a folder called "teste" and inside it I have a Plone site called "id". When I try to rename the folder "teste" to "lixo", the error happens. The error message is bellow.
Regards, Erick

Site Error
An error was encountered while publishing this resource.

Error Type: AttributeError
Error Value: portal_url

--------------------------------------------------------------------------------

Troubleshooting Suggestions

The URL may be incorrect.
The parameters passed to this resource may be incorrect.
A resource that this resource relies on may be encountering an error.
For more detailed information about the error, please refer to the error log.

If the error persists please contact the site maintainer. Thank you for your patience.

[Chris McDonough (chrism-plope)]

Status: Pending => Rejected

Please use the Plone collector at http://plone.org/collector to report this issue (it is not a core Zope issue).