стек вызовов
Error Message:
----------------------------------------
Access violation at address 00F9F17E in module 'ibexpert.exe'. Read of address 00000000

[00F9F17E] NewFieldsFm.TNewFieldsFrame.GetCanEditField (Line 2765, "Frames\NewFieldsFm.pas" + 1) + $1B
[00403BD3] System.@HandleAnyException + $33
[00F6E359] Main.TIBEMainForm.actFieldEditUpdate (Line 9048, "Main.pas" + 1) + $E
[00F96C1E] NewFieldsFm.CreateFieldsFrame (Line 356, "Frames\NewFieldsFm.pas" + 12) + $6
[00DB6537] TblViewF.TTableViewForm.RefreshFields (Line 478, "TblViewF.pas" + 5) + $1A
[00DB7943] TblViewF.TTableViewForm.aRefreshExecute (Line 824, "TblViewF.pas" + 21) + $2
[00DB8020] TblViewF.TTableViewForm.FormShow (Line 963, "TblViewF.pas" + 92) + $5
[00446839] Forms.TCustomForm.DoShow (Line 2829, "Forms.pas" + 1) + $14
[00455025] Controls.TControl.WndProc (Line 4227, "Controls.pas" + 37) + $6
[00446F4E] Forms.TCustomForm.WndProc (Line 3063, "Forms.pas" + 94) + $5
[00454E6C] Controls.TControl.Perform (Line 4152, "Controls.pas" + 5) + $C
[004576B3] Controls.TWinControl.UpdateShowing (Line 5568, "Controls.pas" + 16) + $C
[0045771E] Controls.TWinControl.UpdateControlState (Line 5586, "Controls.pas" + 7) + $1C
[00446F4E] Forms.TCustomForm.WndProc (Line 3063, "Forms.pas" + 94) + $5
[00454E6C] Controls.TControl.Perform (Line 4152, "Controls.pas" + 5) + $C
[00453C60] Controls.TControl.SetVisible (Line 3401, "Controls.pas" + 5) + $F
[00F5DF64] Main.LoadOpenedForms (Line 3747, "Main.pas" + 19) + $F
[00FF1872] InspectorFm.TInspectorFrame.OpenDatabase (Line 3588, "Frames\InspectorFm.pas" + 151) + $3
[00FEC47A] InspectorFm.TInspectorFrame.ObjectsTLDblClick (Line 1456, "Frames\InspectorFm.pas" + 11) + $A
[0045524D] Controls.TControl.DoMouseDown (Line 4306, "Controls.pas" + 2) + $21
[00455309] Controls.TControl.WMLButtonDblClk (Line 4331, "Controls.pas" + 5) + $C
[00444010] Forms.StdWndProc (Line 1459, "Forms.pas" + 8) + $0
[0044D81F] Forms.TApplication.ProcessMessage (Line 6630, "Forms.pas" + 13) + $1
[01095E8C] IBExpert.IBExpert (Line 1389, "D:\Projects_5\IBExpert\IBExpert.dpr" + 594) + $7