Have error in Save macro - HELP!!

hi all,

i have this Save macro which im using with data mapping

Sub Cont_Save()
With Sheet10
If .Range("C6").Value = Empty Then
MsgBox "Please enter todays date" 'This can be changed later
Exit Sub
End If
ContRow = .Range("C99999").End(xlUp).Row + 1 'First Available Row
For ContCol = 3 To 13 'Increase if adding new cols
.Cells(ContRow, ContCol).Value = .Range(.Cells(11, ContCol).Value).Value 'Saves new contact in first empty row In database
Next ContCol

.Shapes("ExistContGrp").Visible = msoCTrue
    .Shapes("NewContGrp").Visible = msoFalse
    
.Range("B7").Value = False 'Set New Contact to False

End With
End Sub

and when ever i run the macro i get an error on the following line

.Cells(ContRow, ContCol).Value = .Range(.Cells(11, ContCol).Value).Value

the

.Range(.Cells(11, ContCol).Value).Value

is supposed to be when the cell row is supposed to start which in this case is row 11, which is correct.

i just cant understand why, i was sure i did everything right....obviously not!!!!