Offline address book issues - exchange 2010

Hi

I'm using exchange mailbox in Outlook 2007

Whenever i'm opening the mail i'm getting the below error

Please help me for the permanent solution

Error 

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9:51:48 Synchronizer Version 12.0.6670

9:51:48 Synchronizing Mailbox 'Venkatesan M'

9:51:48 Synchronizing Hierarchy

9:51:48 Error synchronizing folder

9:51:48                   [8004010F-501-8004010F-0]

9:51:48                   The client operation failed.

9:51:48                   Microsoft Exchange Information Store

9:51:48                   For more information on this failure, click the URL below:

9:51:48                   http://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=8004010f-501-8004010f-0

9:51:48 Error synchronizing folder

9:51:48                   [8004010F-501-8004010F-0]

9:51:48                   The client operation failed.

9:51:48                   Microsoft Exchange Information Store

9:51:48                   For more information on this failure, click the URL below:

9:51:48                   http://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=8004010f-501-8004010f-0

9:51:48 Error synchronizing folder

9:51:48                   [8004010F-501-8004010F-0]

9:51:48                   The client operation failed.

9:51:48                   Microsoft Exchange Information Store

9:51:48                   For more information on this failure, click the URL below:

9:51:48                   http://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=8004010f-501-8004010f-0

9:51:48 Error synchronizing folder

9:51:48                   [8004010F-501-8004010F-0]

9:51:48                   The client operation failed.

9:51:48                   Microsoft Exchange Information Store

9:51:48                   For more information on this failure, click the URL below:

9:51:48                   http://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=8004010f-501-8004010f-0

9:51:48 Error synchronizing folder

9:51:48                   [8004010F-501-8004010F-0]

9:51:48                   The client operation failed.

9:51:48                   Microsoft Exchange Information Store

9:51:48                   For more information on this failure, click the URL below:

9:51:48                   http://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=8004010f-501-8004010f-0

9:51:48 Uploading to server 'CHNEXCH01.astraglobal.local'

9:51:48    1 view(s)/form(s) updated in online folder

9:51:48 Done

10:07:10 Microsoft Exchange offline address book

10:07:10 Download successful

****

Awaiting for the solution

Thanks