Critical Error clarification C370ESA ?

[bsrinu001]

Hi Team, 

Could you please clarify the below Error description? what will be the impact? and the steps to minimize the impact as well.

The Critical message is:

An application fault occurred: ('navigation/HelpBarYUI.py my_tasks_list_submenu|639', "<type 'exceptions.KeyError'>", "'varstore'", '[util/Aquarium.py screenLoop|413] [util/InternalLibrary.py inverseExtend|328] [util/InternalLibrary.py __call__|769] [layout/Bare.py __call__|580] [util/InternalLibrary.py __call__|769] [layout/CssAndJavaScript.py __call__|451] [util/InternalLibrary.py __call__|769] [layout/Sparse.py __call__|1534] [Cheetah/NameMapper.py valueFromSearchList|250] [Cheetah/NameMapper.py _valueForName|229] [layout/Sparse.py doTop|902] [Cheetah/NameMapper.py valueFromSearchList|250] [Cheetah/NameMapper.py _valueForName|229] [layout/Sparse.py doHelpBar|846] [util/InternalLibrary.py call|280] [navigation/HelpBar.py __call__|202] [Cheetah/NameMapper.py valueFromSearchList|250] [Cheetah/NameMapper.py _valueForName|229] [navigation/HelpBarYUI.py options_and_help_yui_menubar|394] [Cheetah/NameMapper.py valueFromSearchList|250] [Cheetah/NameMapper.py _valueForName|229] [n!

 avigation/HelpBarYUI.py my_tasks_mainmenu|452] [Cheetah/NameMapper.py valueFromSearchList|250] [Cheetah/NameMapper.py _valueForName|229] [navigation/HelpBarYUI.py my_tasks_list_submenu|639]')

Version: 9.1.2-013

[Libin Varghese]

The error appears to match the below defect.

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCui32920

Available workaround is listed on the defect page

Turn off the Cross-Site Request Forgeries (CSRF) feature, or wait for fixed AsyncOS release.

To implement this workaround go to the Command Line Interface (CLI) and run the command "adminaccessconfig". Then run the subcommand "CSRF" and disable this feature.

Regards,

Libin Varghese