creating functions

Can you guys tell me why my code gives me this error:
An object reference is required for the nonstatic field, method, or property 'WindowsClient.Form1.Close Connections()'

also i get it on 'WindowsClient.Form1.serverAddress' and on 'WindowsClient.Form1.Connect(string)'

Code:

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                static void Main()
                {
                        Application.Run(new Form1());
                        Connect(serverAddress);
                        CloseConnections();
                }
                public void Connect(string server)
                {
                        //code
                }
               
                public void CloseConnections()
                {
                        //code
                }

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