Error message

• Notice: Undefined property: stdClass::$uri in theme_file_link() (line 751 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$uri in theme_file_link() (line 771 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in theme_file_icon() (line 817 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 861 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_map() (line 904 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 876 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 876 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 876 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 876 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in theme_file_link() (line 783 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filesize in theme_file_link() (line 783 of /var/www/scholar/modules/file/file.module).
• Notice: Undefined property: stdClass::$filename in theme_file_link() (line 789 of /var/www/scholar/modules/file/file.module).