Showing Header

Hi, I have been trying to change format-layout (Apperance>>Jollyness Settings>>and add header to my homepage. But am unable to do so. Can you please guide me on this. Also, it shows the following error in pink background. Notice: Undefined index: theme_settings in drupalexp_form_system_theme_settings_alter() (line 24 of /home/sym_yo/drup2/profiles/drupalexp_jollyness/themes/drupalexp/theme-settings.php). Notice: Undefined index: logo in drupalexp_form_system_theme_settings_alter() (line 25 of /home/sym_yo/drup2/profiles/drupalexp_jollyness/themes/drupalexp/theme-settings.php). Notice: Undefined index: favicon in drupalexp_form_system_theme_settings_alter() (line 26 of /home/sym_yo/drup2/profiles/drupalexp_jollyness/themes/drupalexp/theme-settings.php). Notice: Undefined index: logo_path in system_theme_settings_validate() (line 643 of /home/sym_yo/drup2/modules/system/system.admin.inc). Notice: Undefined index: favicon_path in system_theme_settings_validate() (line 649 of /home/sym_yo/drup2/modules/system/system.admin.inc). Notice: Undefined index: logo_upload in system_theme_settings_submit() (line 706 of /home/sym_yo/drup2/modules/system/system.admin.inc). Notice: Undefined index: favicon_upload in system_theme_settings_submit() (line 713 of /home/sym_yo/drup2/modules/system/system.admin.inc). Notice: Undefined index: theme_settings in drupalexp_form_system_theme_settings_alter() (line 24 of /home/sym_yo/drup2/profiles/drupalexp_jollyness/themes/drupalexp/theme-settings.php). Notice: Undefined index: logo in drupalexp_form_system_theme_settings_alter() (line 25 of /home/sym_yo/drup2/profiles/drupalexp_jollyness/themes/drupalexp/theme-settings.php). Notice: Undefined index: favicon in drupalexp_form_system_theme_settings_alter() (line 26 of /home/sym_yo/drup2/profiles/drupalexp_jollyness/themes/drupalexp/theme-settings.php).