Delete the Vcenter Node from Solarwinds and Re Add

Then Re do the VMan intergration setup

Select TOP 1000 * FROM [dbo].[VIM_PollingTasks] From SolarwindsOrionNPMPRD [VIM_PollingTasks]

Check for the server to re-appear ( Can take 4 + hours depending on how large your Vmware Environment is )