Invalid date format

Hi!
I have a problem with date format this time.
I had set it up in my profile - PROFILE/ADVANCE/DATE FORMAT to 23/12/2010
In ADMIN/SYSTEMSETTINGS its set to Default date format = %c
When i creat quote with date 20/09/2019 it says invalid date format.

Fri Sep 20 11:16:42 2019 [31792][1][FATAL] log call at: modules/EmailMan/tpls/config.tpl:465 - styleChecked is not set
Fri Sep 20 11:25:16 2019 [5474][1][FATAL] Undefined index: module
Fri Sep 20 11:25:16 2019 [5474][1][FATAL] Invalid or missing SubPanelDefinition property: subpanel_name
Fri Sep 20 11:25:16 2019 [5474][1][FATAL] Failed to load original or custom subpanel data for eapm in 
Fri Sep 20 11:34:28 2019 [5474][1][FATAL] Undefined index: module
Fri Sep 20 11:34:28 2019 [5474][1][FATAL] Invalid or missing SubPanelDefinition property: subpanel_name
Fri Sep 20 11:34:28 2019 [5474][1][FATAL] Failed to load original or custom subpanel data for eapm in 

Hello

just a suggestion, try changing your timezone in php.ini file.

Sam