Multiple Session of Solidworks

Any ideas what the attached picture could mean? It was happening yesterday whenever I would start the Solidworks program. As far as know, Solidworks was not running like the dialog box says; it did not display in my task manager. The problem seemed to fix itself when I rebooted my computer. During the shut down, Windows said that I need to close Solidworks, but it wasn't even running.

SolidworksGeneral