Crashes on first display (ArgumentOutOfRangeException)

>    ActiproSoftware.Text.Wpf.dll!#PZc.#SZc.Offset.set(int value) + 0x6f bytes    
     ActiproSoftware.SyntaxEditor.Addons.DotNet.Wpf.dll!ActiproSoftware.Text.Languages.CSharp.Implementation.CSharpOutliningSource.#U1b(ActiproSoftware.Text.ITextBufferReader reader, int? startOffset, int? endOffset, ActiproSoftware.Windows.Controls.SyntaxEditor.Outlining.IOutliningNodeDefinition definition) + 0x82 bytes    
     ActiproSoftware.SyntaxEditor.Addons.DotNet.Wpf.dll!ActiproSoftware.Text.Languages.CSharp.Implementation.CSharpOutliningSource.#wU(ActiproSoftware.Text.ITextBufferReader reader, ActiproSoftware.Text.Languages.DotNet.Ast.Implementation.NamespaceDeclaration astNode) + 0x91 bytes    
     ActiproSoftware.SyntaxEditor.Addons.DotNet.Wpf.dll!ActiproSoftware.Text.Languages.CSharp.Implementation.CSharpOutliningSource.AddNodesRecursive(ActiproSoftware.Text.ITextBufferReader reader, ActiproSoftware.Text.Parsing.IAstNode astNode) + 0x3d9 bytes    
     ActiproSoftware.SyntaxEditor.Addons.DotNet.Wpf.dll!ActiproSoftware.Text.Languages.CSharp.Implementation.CSharpOutliningSource.AddNodesFromParseData(ActiproSoftware.Text.Languages.DotNet.IDotNetParseData parseData) + 0x13e bytes    
     ActiproSoftware.SyntaxEditor.Addons.DotNet.Wpf.dll!ActiproSoftware.Text.Languages.CSharp.Implementation.CSharpOutliner.GetOutliningSource(ActiproSoftware.Text.ITextSnapshot snapshot) + 0xbb bytes    
     ActiproSoftware.SyntaxEditor.Wpf.dll!#b3b.#a3b.GetOutliningSource(ref ActiproSoftware.Windows.Controls.SyntaxEditor.Outlining.AutomaticOutliningUpdateTrigger? updateTrigger) + 0x18c bytes    
     ActiproSoftware.SyntaxEditor.Wpf.dll!#b3b.#a3b.#0gc(ActiproSoftware.Windows.Controls.SyntaxEditor.Outlining.AutomaticOutliningUpdateTrigger? updateTrigger, ActiproSoftware.Text.TextSnapshotRange targetSnapshotRange, bool autoCollapse) + 0x76 bytes    
     ActiproSoftware.SyntaxEditor.Wpf.dll!#b3b.#a3b.#dgc(object sender, System.EventArgs e) + 0xd4 bytes    
     ActiproSoftware.Text.Wpf.dll!ActiproSoftware.Text.Implementation.CodeDocument.OnParseDataChanged(ActiproSoftware.Text.Parsing.ParseDataPropertyChangedEventArgs e) + 0x103 bytes    
     ActiproSoftware.Text.Wpf.dll!ActiproSoftware.Text.Implementation.CodeDocument.ParseData.set(ActiproSoftware.Text.Parsing.IParseData value) + 0x8a bytes    
     ActiproSoftware.Text.Wpf.dll!ActiproSoftware.Text.Implementation.CodeDocument.NotifyParseComplete(ActiproSoftware.Text.Parsing.IParseRequest request, ActiproSoftware.Text.Parsing.IParseData result) + 0x5d bytes    
     ActiproSoftware.Text.Wpf.dll!ActiproSoftware.Text.Implementation.CodeDocument.#bGc(ActiproSoftware.Text.Parsing.IParseRequest request, ActiproSoftware.Text.Parsing.IParseData result) + 0x44 bytes    
     ActiproSoftware.Text.Wpf.dll!ActiproSoftware.Text.Parsing.Implementation.ThreadedParseRequestDispatcher.#g.#0Yc.#nXc(ActiproSoftware.Text.Parsing.IParseRequest request) + 0xbd bytes    
     ActiproSoftware.Text.Wpf.dll!ActiproSoftware.Text.Parsing.Implementation.ThreadedParseRequestDispatcher.#g.#0Yc.#56c() + 0x400 bytes    
     mscorlib.dll!System.Threading.ThreadHelper.ThreadStart_Context(object state) + 0x63 bytes    
     mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool ignoreSyncCtx) + 0xb0 bytes    
     mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) + 0x2c bytes    
     mscorlib.dll!System.Threading.ThreadHelper.ThreadStart() + 0x44 bytes    
     [Native to Managed Transition]