Hi, when I add a hotel room and I want to see the product list, I get the following error:

Notice: Undefined property: stdClass::$type en _node_extract_type() (línea 385 de /var/www/fairplaygolfhotel.com/modules/node/node.module).
Notice: Undefined property: stdClass::$nid en node_build_content() (línea 1425 de /var/www/fairplaygolfhotel.com/modules/node/node.module).
EntityMalformedException: Missing bundle property on entity of type node. en entity_extract_ids() (línea 7663 de /var/www/fairplaygolfhotel.com/includes/common.inc).

Can anyone help me fix this?
Thank you.