diff --git a/source/bizobjects/AyaLib/GZTW.AyaNova.BLL/UIUserGridLastView.cs b/source/bizobjects/AyaLib/GZTW.AyaNova.BLL/UIUserGridLastView.cs
index 8b252a9..3afe215 100644
--- a/source/bizobjects/AyaLib/GZTW.AyaNova.BLL/UIUserGridLastView.cs
+++ b/source/bizobjects/AyaLib/GZTW.AyaNova.BLL/UIUserGridLastView.cs
@@ -223,6 +223,28 @@ System.NullReferenceException: Object reference not set to an instance of an obj
 2017-11-16 12:12:58,794 [4864] WARN  AyaNova.Form1 - User opted to continue after exception
 2017-11-16 12:12:58,794 [4864] INFO  AyaNova.Form1 - AyaNova has shut down OK
                  
+
+                 2020-05-08  Michael Mera same issue huge db:
+
+                 
+2020-05-08 11:42:19,662 [9944] FATAL AyaNova.Form1 - Unhandled exception
+System.ArgumentOutOfRangeException: Length cannot be less than zero.
+Parameter name: length
+   at System.String.Substring(Int32 startIndex, Int32 length)
+   at GZTW.AyaNova.BLL.UIUserGridLastView.set_SubstituteCriteria(String value)
+   at AyaNova.Util.D(Object A, ToolClickEventArgs B)
+   at Infragistics.Win.UltraWinToolbars.ToolBase.OnToolClick(ToolClickEventArgs e)
+   at Infragistics.Win.UltraWinToolbars.UltraToolbarsManager.FireEvent(ToolbarEventIds id, EventArgs e)
+   at Infragistics.Win.UltraWinToolbars.PopupMenuItemUIElement.DoClickProcessing(MouseEventArgs e)
+   at Infragistics.Win.UltraWinToolbars.PopupMenuItemUIElement.OnMouseUp(MouseEventArgs e)
+   at Infragistics.Win.TextUIElementBase.OnMouseUp(MouseEventArgs e)
+   at Infragistics.Win.ControlUIElementBase.ProcessMouseUpHelper(Object sender, MouseEventArgs e)
+   at Infragistics.Win.ControlUIElementBase.ProcessMouseUp(Object sender, MouseEventArgs e)
+   at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
+   at Infragistics.Win.UltraWinToolbars.PopupControlBase.OnMouseUp(MouseEventArgs e)
+   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
+   at System.Windows.Forms.Control.WndProc(Message& m)
+   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
                  */
                 mViewXML = mViewXML.Substring(0, nStart) + value + mViewXML.Substring(nEnd, mViewXML.Length-nEnd);