bug postgresSQL

when i close the program or disconnect from a PSQL DB i have the following issue:

date/time : 2015-06-11, 10:34:49, 290ms
computer name : ITMI01CW32
user name : zobia <admin>
registered owner : Zobia S.P.A.
operating system : Windows XP Service Pack 3 build 2600
system language : English
system up time : 3 days
program up time : 33 seconds
processors : 2x Genuine Intel(R) CPU 2140 @ 1.60GHz
physical memory : 1600/3062 MB (free/total)
free disk space : (C:) 4,44 GB (D:) 31,82 GB
display mode : 1280x1024, 32 bit
process id : $1508
allocated memory : 22,50 MB
largest free block : 470,96 MB
executable : heidisql.exe
exec. date/time : 2015-05-02 13:40
version : 9.2.0.4947
compiled with : Delphi XE5
madExcept version : 4.0.8.1
callstack crc : $313f90c1, $c5633f6e, $0472497b
exception number : 1
exception class : EAccessViolation
exception message : Access violation at address 004084B0 in module 'heidisql.exe'. Read of address FFFFFFFC.

main thread ($10b8):
004084b0 heidisql.exe System 549 +0 TObject.Free
00409846 heidisql.exe System 549 +0 @HandleFinallyInternal
7c92ab7c ntdll.dll RtlUnwind
00409592 heidisql.exe System 549 +0 @HandleAnyException
005b4354 heidisql.exe Vcl.Controls TWinControl.MainWndProc
7c90e485 ntdll.dll KiUserExceptionDispatcher
004097ce heidisql.exe System 549 +0 @HandleFinally
7c92ab7c ntdll.dll RtlUnwind
00409592 heidisql.exe System 549 +0 @HandleAnyException
7c90e485 ntdll.dll KiUserExceptionDispatcher
10004aab libpq.dll PQfinish
00831135 heidisql.exe dbconnection 1934 +47 TPgConnection.SetActive
0093cff8 heidisql.exe Main 2030 +52 TMainForm.ConnectionsNotify
0040c978 heidisql.exe System 549 +0 DynArraySetLength
0085422e heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.Notify
00854ea3 heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TObjectList<dbconnection.TDBConnection>.Notify
00854a3c heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.DeleteRange
00854094 heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.SetCount
0067aa75 heidisql.exe Vcl.Forms TCustomForm.DoDestroy
0067a8c6 heidisql.exe Vcl.Forms TCustomForm.Destroy
004084b0 heidisql.exe System 549 +0 TObject.Free
00539653 heidisql.exe System.Classes TComponent.DestroyComponents
00678655 heidisql.exe Vcl.Forms DoneApplication
0044c109 heidisql.exe System.SysUtils DoExitProc
00409fe9 heidisql.exe System 549 +0 @Halt0
009779a9 heidisql.exe heidisql 79 +26 initialization

main thread ($10b8), inner exception level 1:
>> EAccessViolation, Access violation at address 0040CB44 in module 'heidisql.exe'. Write of address 003C2920
0040cb44 heidisql.exe System 549 +0 @DynArrayClear
00854a5b heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.DeleteRange
00854094 heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.SetCount
0067aa75 heidisql.exe Vcl.Forms TCustomForm.DoDestroy
0067a8c6 heidisql.exe Vcl.Forms TCustomForm.Destroy
004084b0 heidisql.exe System 549 +0 TObject.Free
00539653 heidisql.exe System.Classes TComponent.DestroyComponents
00678655 heidisql.exe Vcl.Forms DoneApplication
0044c109 heidisql.exe System.SysUtils DoExitProc
00409fe9 heidisql.exe System 549 +0 @Halt0
009779a9 heidisql.exe heidisql 79 +26 initialization

main thread ($10b8), inner exception level 2:
>> EAccessViolation, Access violation at address 10004967 in module 'libpq.dll'. Write of address 00130050
10004967 libpq.dll
10004aab libpq.dll PQfinish
00831135 heidisql.exe dbconnection 1934 +47 TPgConnection.SetActive
0093cff8 heidisql.exe Main 2030 +52 TMainForm.ConnectionsNotify
0040c978 heidisql.exe System 549 +0 DynArraySetLength
0085422e heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.Notify
00854ea3 heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TObjectList<dbconnection.TDBConnection>.Notify
00854a3c heidisql.exe dbconnection 728 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.DeleteRange
00854094 heidisql.exe dbconnection 38 +0 {System.Generics.Collections}TList<dbconnection.TDBConnection>.SetCount
0067aa75 heidisql.exe Vcl.Forms TCustomForm.DoDestroy
0067a8c6 heidisql.exe Vcl.Forms TCustomForm.Destroy
004084b0 heidisql.exe System 549 +0 TObject.Free
00539653 heidisql.exe System.Classes TComponent.DestroyComponents
00678655 heidisql.exe Vcl.Forms DoneApplication
0044c109 heidisql.exe System.SysUtils DoExitProc
00409fe9 heidisql.exe System 549 +0 @Halt0
009779a9 heidisql.exe heidisql 79 +26 initialization