The Outlook Web Access web application failed to parse the Address Book custom properties. Invalid attribute count in "%1" ...

The Outlook Web Access web application failed to parse the Address Book custom properties. 

Invalid attribute count in "%1" at line number = "%2".Each CustomProperty element is supposed to have only two attributtes. If this error is not addressed, users will not be able to view the custom properties. The Help and Support Center provides information about troubleshooting this issue.
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