To help us debug this, please provide the following details:
What are your WFA and OCUM versions ?
Are you facing the issue consistently. Actually Similar issues of Table not existing have been been seen but on very rare occasions in NetApp lab environments, but have never been produced consistently. Subsequent DataSource acquisitions often clears off the error and Acquisition works then on. But before trying it, read step 3.
Please take the Autosupport Logs from "Administration -> WFA Configuration -> Autosupport Tab -> Download button" and attach it here.