Try removing the following folder and everything under it:
That will remove the config file that Orion looks for to decide that a folder contains a module.
Then remove the following segment from the ..\SolarWinds\web.config file:
<add name="VoipCallPathViewID" type="System.Int32" />
<add name="VoipSiteViewID" type="System.Int32" />
<add name="VoipCallManagerViewID" type="System.Int32" />
<add name="VoipSummaryViewID" type="System.Int32" />
Then restart the website.
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