Crash after anysetting change HKEY_CURRENT_USER\Software\WinNUT\Connexion

[GOUKI9999]

win11 22H2 22621.1344 /v2.0.7722.30975 /.net v4.0.30319 &3.5 &3.0

Exception type: System.NullReferenceException
Exception message: 未将对象引用设置到对象的实例。
Exception stack trace:
在 WinNUT_Client_Common.Nut_Socket.get_IsKnownUPS(String Test_UPSname)
在 WinNUT_Client_Common.UPS_Device.Connect_UPS()
在 WinNUT_Client_Common.UPS_Device..ctor(Nut_Parameter Nut_Config, Logger& LogFile)
在 WinNUT_Client.WinNUT.WinNUT_Load(Object sender, EventArgs e)
在 System.EventHandler.Invoke(Object sender, EventArgs e)
在 System.Windows.Forms.Form.OnLoad(EventArgs e)
在 System.Windows.Forms.Form.OnCreateControl()
在 System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
在 System.Windows.Forms.Control.CreateControl()
在 System.Windows.Forms.Control.WmShowWindow(Message& m)
在 System.Windows.Forms.Control.WndProc(Message& m)
在 System.Windows.Forms.ScrollableControl.WndProc(Message& m)
在 System.Windows.Forms.ContainerControl.WndProc(Message& m)
在 System.Windows.Forms.Form.WmShowWindow(Message& m)
在 System.Windows.Forms.Form.WndProc(Message& m)
在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

First run seems everything was ok, but when I changed any setting (ip port name etc.)in connection tab of gui, it will crash at rerunning

Even I tried to export the reg file from other win10 computer that clinet works fine there , and inport file to this one, it not works. HKEY_CURRENT_USER\Software\WinNUT

After several times reinstall repair ,It crash yet

[gbakeman]

Please see #136 and try the latest version.