No Available Licenses

We have a total of 2 standard licenses and a total of 2 professional licenses.  Solidworks License Manage states 2 free licenses for professional and 0 free for standard.    When both standard licenses are used Solidworks doesn't obtain a professional license and I can't open Solidworks.  How can I get Solidworks to obtain a professional license when the standard licenses are being used?

SolidworksAdministration