I got this error :

07-04-2010 11:00:27 [892]: ZCSExchangeMigrationWizard-6.0.5_GA_2213 Version 6.0
07-04-2010 11:00:27 [892]: Outlook.Application\CurVer: 11
07-04-2010 11:00:48 [892]: RPC Error:- WinHttpSendRequest failed. The RPC request is logged as C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\ZCSExchangeMigr ationWizard-6.0.5_GA_2213\1-RPCErrorRequest.xml
07-04-2010 11:00:48 [892]: RPC Error: One or more errors were found in the Secure Sockets Layer (SSL) certificate sent by the server.
Continue with the invalid certificate?
07-04-2010 11:00:51 [892]: strSvrVersion: 6.0.5_GA_2213.UBUNTU8 20100202225756 20100202-2304 FOSS
07-04-2010 11:00:51 [892]: dSvrMajorVer: 6.000000
07-04-2010 11:00:51 [892]: dProdMajorVersion: 6.000000
07-04-2010 11:00:51 [892]: wProdMinorVersion: 5
07-04-2010 11:00:51 [892]: Server Minor: 5
07-04-2010 11:22:43 [892]: Picking Objects
07-04-2010 11:22:47 [892]: Exchange Server 5.5
07-04-2010 11:22:47 [892]: AdsPath: LDAP://PROLIANT
07-04-2010 11:22:47 [892]: DsPath: LDAP://mydomain.com/CN=TestZ,CN=Users,DC=mydomain,DC=com hr:0
07-04-2010 11:22:48 [892]: query: (&(objectClass=person)(Assoc-NT-Account=010500000000000515000000C6BB507A2038BB2443 170A32BA080000))
07-04-2010 11:22:48 [892]: GetNextRow hr: 0
07-04-2010 11:22:48 [892]: GetNextRow hr: 1
07-04-2010 11:22:48 [892]: GetNextRow hr: 5012
07-04-2010 11:22:48 [892]: ADsGetLastError: 0x0
07-04-2010 11:23:00 [892]: Clearing internal progress log entries
07-04-2010 11:23:00 [892]: Entries cleared
07-04-2010 11:23:20 [892]: ------------------Import Options--------------------------
07-04-2010 11:23:20 [892]: Import Mails : Yes
07-04-2010 11:23:20 [892]: Import Contacts : Yes
07-04-2010 11:23:20 [892]: Import Calendar Items: Yes
07-04-2010 11:23:20 [892]: Import Tasks : Yes
07-04-2010 11:23:20 [892]: Import JunkMail : Yes
07-04-2010 11:23:20 [892]: Import Deleted Items : Yes
07-04-2010 11:23:20 [892]: UseProgressLogs : Yes
07-04-2010 11:23:20 [892]: Concurrency : 1
07-04-2010 11:23:20 [892]: MessageLogging : Yes
07-04-2010 11:23:20 [892]: ----------------------X-X-X-------------------------------
07-04-2010 11:23:22 [892]: Creating / starting 1 worker threads
07-04-2010 11:23:22 [892]: Dispatching work to worker threads
07-04-2010 11:23:22 [120]: Worker thread started
07-04-2010 11:23:22 [892]: Notifying threads to exit
07-04-2010 11:23:22 [120]: Waiting for work
07-04-2010 11:23:22 [120]: Work arrived.../ Tbk."/o="MyCompany/ou=MYDOMAIN/cn=Recipients/cn=TestZ TestZ@zmail1.mydomain.com
07-04-2010 11:23:22 [120]: Opening other users store
07-04-2010 11:23:22 [120]: OpenMsgStore returned 8004011d
07-04-2010 11:23:22 [120]: Deleting mapi folder list
07-04-2010 11:23:22 [120]: Error while importing mailbox TestZ@zmail1.mydomain.com: COM Exception. Could not open corresponding message store.07-04-2010 11:23:22 [120]: Waiting for work
07-04-2010 11:23:22 [120]: Worker thread exiting
I've search on this forum, and nobody got this error before.. Please help me....