Skype has stopped working, check online
It happens sometimes that when you start an application in windows 7 they might crash or sometimes malfunctioned. You need to uninstall the software and download the latest version of the software.
Go to https://www.skype.com/en/ and download the latest version of Skype which is compatible with windows 7. This should solve your problem.
There seems to be some problem with your version of Skype.
I would recommend you to re-install your Skype software.
Go to Control Panel -> Add or Remove a program. Select Skype and then follow the on-screen instructions to uninstall the software.
Then go to the following link to get the latest version of the Skype software.
This should solve your problem.
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