That means WAMP is not working, due to errors. First try to start WAMP, by left clicking WAMP tray icon and select Start All Services
Does the trayicon change? If it doesn't it will mean something is wrong. If this is the case then it is more than likely there is another App/process using port 80. Wamp requires this port to function,
Make sure you dont have IIS, Skype etc running. These are
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