Error message

• Warning: array_flip(): Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 175 of /home/picklish/public_html/drupal/includes/entity.inc).
• Notice: Trying to get property of non-object in include() (line 44 of /home/picklish/public_html/drupal/sites/all/themes/guitar/templates/node--music.tpl.php).
• Notice: Undefined property: stdClass::$uri in theme_file_link() (line 783 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$uri in theme_file_link() (line 803 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in theme_file_icon() (line 849 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 893 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_map() (line 936 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 908 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 908 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 908 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in file_icon_path() (line 908 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filemime in theme_file_link() (line 815 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filesize in theme_file_link() (line 815 of /home/picklish/public_html/drupal/modules/file/file.module).
• Notice: Undefined property: stdClass::$filename in theme_file_link() (line 821 of /home/picklish/public_html/drupal/modules/file/file.module).