ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

[Atrejoe]

View details in Rollbar: https://rollbar.com/SPACallmanagerPro/SPA-Callmanager-Pro/items/45/

Traceback (most recent call last):
  File "System.ThrowHelper", line 46, in ThrowArgumentOutOfRangeException(System.ExceptionArgument argument, System.ExceptionResource resource)
  File "System.Collections.Generic.List`1", line unknown, in get_Item(System.Int32 index)
  File "C:\Projects\SPA-Call-Manager-Pro\Cisco\FrmMain.vb", line 640, in DGWAnswered_CellContentClick(System.Object sender, System.Windows.Forms.DataGridViewCellEventArgs e)
ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index