There can be many reasons for this - the most obvious one is that the ldap connection from the VA is not working - so please check that in the VA console. The cause of this can be many - but if you are using SSL connection to the ldap certificate expiry may b a reason.
It may also be that the ITIM Manager account has been set inactive - you should be able to check that directly in the ldap - check the eruid=ITIM Manager and verify that eraccountstatus=0 - if not - set it.
If you have simply forgot the password (I doubt that as this sounds like a relatively new install) then you can follow these guidelines :
https://www.ibm.com/support/pages/resetting-forgotten-itim-manager-passwordIf nothing of this helps you get a case out of the door to IBM Support and they will help you out :-)
HTH
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Franz Wolfhagen
IAM Technical Architect for Europe - Certified Consulting IT Specialist
IBM Security Expert Labs
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