Microsoft.NET Framework error on 1.6.6

[521ztz]

Hi, Farmith,
When trying to create a profile, after the screen shows the character selection, I got this error. No profile is created.

************** 异常文本 **************
System.ArgumentException: Parameter is not valid.
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat format)
at MultiInstanceManager.Helpers.AutomationHelper.GetScreenshot(Rect rect)
at MultiInstanceManager.Helpers.AutomationHelper.FindLoginButton(Int32 xline, Int32 yline)
at MultiInstanceManager.Helpers.AutomationHelper.FillLauncherCredentials(Process launcher, String user, String pass)
at MultiInstanceManager.Modules.MultiHandler.Setup(String displayName, Boolean killProcessesWhenDone)
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at MultiInstanceManager.MultiInstanceManager.<addAccountButton_Click>d__12.MoveNext()
--- End of stack trace from previous location ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()