Why is an object required for this line of code?

I'm getting the 'object required' error on the red line of code. Any debugging tips?

            For Each cell In rngtest
                If cell.Value = linenumber Then
                     cell.EntireRow.Delete Shift:=xlUp
                End If
                     If cell.Interior.Color = 65535 Then
                        cell.Resize(1, 20).Select
                        Selection.Interior.Color = 65535
                     End If
                
            Next