After login , double click on the text to move on?

I logged in a website by the following code:

  Set HTMLDoc = IE.document
  With HTMLDoc
  HTMLDoc.getElementById("edLoginName").Value = "XXXX"
  HTMLDoc.getElementById("edKennwort").Value = "XXX"
  End With


  Set objCollection = IE.document.getElementById("pbAnmelden")
  objCollection.Click

After login, I want to double click on word "Online Search" to move to another section with the following code

Inspect element:

""<""span class="zeidontext" id="olTree_node_3" style="cursor: pointer;">Online Search""<""/span>""


Set objCollection1 = IE.document.getElementById("olTree_node_3")
objCollection1.Click

But I get:

Runtime error 424- Object required