Error message

• User warning: The following module is missing from the file system: commerce_product_reference. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1143 of E:\wonders\includes\bootstrap.inc).
• Warning: file_put_contents(): Filename cannot be empty in file_unmanaged_save_data() (line 1962 of E:\wonders\includes\file.inc).
• The file could not be created.
• Warning: file_put_contents(): Filename cannot be empty in file_unmanaged_save_data() (line 1962 of E:\wonders\includes\file.inc).
• The file could not be created.