Error when trying to disactivate or delete account !

Hi all ! iam using gajim 1.2.0 64 bits portable version on windows 10 ( windows is up to date ) ...When i tried to disactivate my account.. it shows an error window ! there is the message :

Versions

OS: Windows 10
GTK Version: 3.24.20
PyGObject Version: 3.36.1
GLib Version : 2.64.1
python-nbxmpp Version: 1.0.0
Gajim Version: 1.2.0

Traceback

Traceback (most recent call last):
  File "C:/msys64/home/appveyor/gajim/win/_build_root/mingw64/lib/python3.8/site-packages/gajim/gtk/accounts.py", line 547, in _on_enable_switch
  File "C:/msys64/home/appveyor/gajim/win/_build_root/mingw64/lib/python3.8/site-packages/gajim/gui_interface.py", line 1608, in disable_account
  File "C:/msys64/home/appveyor/gajim/win/_build_root/mingw64/lib/python3.8/site-packages/gajim/common/client.py", line 614, in cleanup
AttributeError: 'Client' object has no attribute '_screensaver_handler_id'

Steps to reproduce the problem

...Gajim_1.2.0_disactivate_account_issue__

Edited Jun 26, 2020 by nad