Not sure this is the relevant forum, couldn't find any on bug reports, I just got this message when shutting down my most recent exe of the game I'm working on, here goes (couldn't replicate the error):
Error: Object reference not set to an instance of an object.
Version: AGS 3.2.1.111
System.NullReferenceException: Object reference not set to an instance of an object.
at AGS.Editor.ScintillaWrapper.scintillaControl1_MarginClick(Object sender, MarginClickEventArgs e)
at Scintilla.ScintillaControl.DispatchScintillaEvent(SCNotification notification)
at Scintilla.ScintillaControl.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Site & Forum Reports
For reporting issues found on the AGS site and forums. Game bug reports go in the Completed Game Announcements forum, and bugs in AGS itself should be reported in the Bug and Suggestion Tracker (http://www.adventuregamestudio.co.uk/forums/index.php?action=projects).
Which reminds me, I still get an error when trying to view an issue:
An Error Has Occurred!
You are not allowed to view issues of this project.
(here I tried to view random issue http://www.adventuregamestudio.co.uk/forums/index.php?issue=194.0 (http://www.adventuregamestudio.co.uk/forums/index.php?issue=194.0))