getElementsByName "Object variable or With Block Variable not set" Error - excel

Question

The error I'm getting is "Object variable or With Block Variable not set " in reference to the ".click" line of the code. I'm newer to VBA coding and I've tried various different things but I'm unable to figure it out. Any ideas?
The point of the code is to launch a new internet explorer, navigate to a work site, click on a drop down, tab once, then click enter. Ideally I'd like to just click the 'ok' button but I'm getting same error so I'll probably switch it if you guys can tell me what I'm doing wrong to get the error.
Sub GetData()
Dim objIE As InternetExplorer
Dim Ele As Object
Set IE = New InternetExplorer
IE.Visible = True
IE.navigate "http://workurl"
Do While IE.Busy = True Or IE.readyState <> 4: DoEvents: Loop
IE.document.getElementsByName("staffGroupCombo")(0).Click
Application.Wait (Now() + TimeValue("00:00:01"))
SendKeys "+{TAB}"
Application.Wait (Now() + TimeValue("00:00:01"))
SendKeys "+{~}"
'Just placeholder stuff I sometimes need to copy
'Do While IE.Busy = True Or IE.readyState <> 4: DoEvents: Loop
'Debug.Print ele.ClassName
'Debug.Print ele.tagName
'Debug.Print ele.ID

Answer 1

Sometimes constructs in a single line like
IE.document.getElementsByName("staffGroupCombo")(0).Click
don't work. I don't know why.
Try this:
Set Ele = IE.document.getElementsByName("staffGroupCombo")
Ele(0).Click
If the page is not fully loaded like K.Davis write, you can insert a break after the IE says he is ready.
Do While IE.Busy = True Or IE.readyState <> 4: DoEvents: Loop
Application.Wait (Now() + TimeValue("00:00:05"))