Blank screen shown in a few computers at my workplace

Hey everybody,
In the past week, a few of the computers at my workplace have been showing the following message.

SmartLaunch Client
Error occurred while initializing the SmartLaunch Client:
Syatem.NullReferenceException: Object reference not set to an instance
of an object.
at
Smartlaunch.Classes.x4874f0a6c53e3ad7.set_xf1050164936a47d5(String
x759aa16c2016a289, String xd2f68ee6f47e9dfb)
at Smartlaunch.Classes.x4874f0a6c53e3ad7.xce92de628aa023cf(String
xaaa63d9f948a1dd4, String x667f187de9b1fd1e)
at Smartlaunch.Classes.x4874f0a6c53e3ad7.x2ae118ccc544aa60()
at Smartlaunch.Classes.x4874f0a6c53e3ad7.x20aee281977480cf()
at Smartlaunch.Forms.x138fa432eb5aa65e.xc5f0e48c4ff48aef()
OK
When I click OK, a blank screen appears and I have no option, but to restart the computer.
Any help or ideas on this please?
Thanks.
