Commerce Server Profile System Error: ProfileSystem.logon_error_dates" must have a unique d

Hi,

I am working on a ASP.NEt commerce server 2007 web based application. Problem i am facing is that whenever i write CreateUserWizard control i get an exception message "ProfileSystem.logon_error_dates" must have a unique data constraint". I am using UPMMembership provider. I have checked that this field has unique constraint in Database server as well as property in commerce server is also defined to be Unique key.

I have tried all possible alternatives but this problem is persisting. do anyone have any idea about this error

Regards

Entry in my web.config file is

<membershipdefaultProvider="UpmMembershipProvider">

<providers>

<clear />

<addapplicationName="HLYW"enablePasswordRetrieval="false"enablePasswordReset="false"logonNameProperty="GeneralInfo.logon_name"

requiresQuestionAndAnswer="false"requiresUniqueEmail="true"enableCreateDate="false"enableEmailAddress="true"

enableLastLoginDate="false"profileDefinition="UserObject"passwordFormat="Hashed"name="UpmMembershipProvider"requiresApproval="false"

type="Microsoft.CommerceServer.Runtime.Profiles.UpmMembershipProvider"/>

</providers>

</membership>

[4662 byte] By [AbhishekGoel] at [2008-1-7]