Run-time error '424' Object Required

Hey Guys! I am new to this forum and just started dabbling in VBA/Macros over the last couple weeks. I have a workbook that uses two main tabs. One tab is known as "Tracking" (items in process or being worked on) and the other is known as "Completed" (items that are finished). I have written a macro that finds dates under the "Completion Date" column (column J in my worksheet) in the Tracking tab and if there is a date in any of those cells, it cuts that row out of Tracking and pastes it into the next available row in the "Completed" tab.

With all that said, I am getting a Run-time error '424': object required. Here is the code that I have thus far:

Sub Request_Complete()
Dim rngDest As Range
Set rngDest = ws.Range("rngDest")
' Limit the trap area to range of cells in which completed dates are entered as defined above
If Not Intersect(Target, ws.Range("rngTrigger")) Is Nothing Then
' Only trigger if the value entered is a date or is recognizable as a valid date
If IsDate(Target) Then
'Ensure subsequent deletion of 'moved' row does NOT cause the Change Event to run again and get itself in a loop!
Application.EnableEvents = False
Target.EntireRow.Select
Selection.Cut
rngDest.Insert Shift:=xlDown
Selection.Delete
' Reset EnableEvents
Application.EnableEvents = True
End If
End If
End Sub

When I debug the error it takes me to the Set rngDest = ws.Range ("rngDest") row. I have changed the "ws" to Tracking and Completed so it references the names of my tabs but then I get a 1004 error. Any thoughts? Thank you!

Thanks for your reply. So, first my "ws" needs to go back to referencing the "Tracking" tab which is the actual name of the worksheet? And, no I don't have a "rngDest" but my range is the entire column J, so I need to replace that text with a reference to column J?

Will add code tags going forward.

Thanks!