Drupal already installed

Error message

  • Notice: Undefined index: seven in _drupal_maintenance_theme() (line 74 of /home/reach/public_html/persecution.in/includes/theme.maintenance.inc).
  • Notice: Trying to get property of non-object in _drupal_theme_initialize() (line 146 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Trying to get property of non-object in _theme_build_registry() (line 713 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Trying to get property of non-object in _theme_build_registry() (line 713 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Trying to get property of non-object in _theme_build_registry() (line 713 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Undefined index: seven in theme_get_setting() (line 1439 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Trying to get property of non-object in theme_get_setting() (line 1476 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Trying to get property of non-object in theme_get_setting() (line 1486 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Undefined index: seven in template_preprocess_maintenance_page() (line 2805 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Notice: Trying to get property of non-object in template_preprocess_maintenance_page() (line 2805 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Warning: array_keys() expects parameter 1 to be array, null given in template_preprocess_maintenance_page() (line 2808 of /home/reach/public_html/persecution.in/includes/theme.inc).
  • Warning: Invalid argument supplied for foreach() in template_preprocess_maintenance_page() (line 2808 of /home/reach/public_html/persecution.in/includes/theme.inc).
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