problem with table wp_postmeta / does not exist / Import failed

Hello guys started dating this error in the WordPress site :

database error: [Table ‘xxx.wp_postmeta’ doesn’t exist]

When I want to import from the phpMyAdmin a backup the following error message:

query SQL:

CREATE TABLE wp_postmeta (
meta_id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
post_id bigint(20) unsigned NOT NULL DEFAULT '0',
meta_key varchar(255) DEFAULT NULL,
meta_value longtext,
PRIMARY KEY (meta_id),
KEY post_id (post_id),
KEY meta_key (meta_key)
) ENGINE=InnoDB AUTO_INCREMENT=11369 DEFAULT CHARSET=utf8;

MySQL ha dicho: Documentación

#1005 – Can’t create table ‘xxx.wp_postmeta’ (errno: -1) (Detalles…)

Detalles >>> InnoDB Documentación
Supports transactions, row-level locking, and foreign keys
[ Variables | Reserva de búfers | Estado del InnoDB ]

Anyone know what the error is and what it should do in order to import the table ?