Resolví este problema con los siguientes pasos:
1.- caída de la tabla customer_grid_flat
2.- Volver a crear la tabla:
CREAR TABLA SI NO EXISTE customer_grid_flat
(
entity_id
int NO FIRMADO NO NULL COMENTARIO 'Entidad ID',
name
texto NULL COMMENT 'Nombre',
email
varchar (255) NULL COMMENT 'Correo electrónico',
group_id
int NULL COMMENT 'Group_id',
created_at
marca de tiempo NULL default NULL COMMENT 'Created_at',
website_id
int COMENTARIO NULL 'Website_id',
confirmation
varchar (255) COMENTARIO NULL 'Confirmación',
created_in
texto COMENTARIO NULL 'Created_in',
dob
fecha COMENTARIO NULL 'Dob',
gender
int COMENTARIO NULL 'Sexo',
taxvat
varchar (255) COMENTARIO NULL 'Taxvat',
lock_expires
marca de tiempo NULL default COMENTARIO NULO 'Lock_expires',
shipping_full
texto COMENTARIO NULO 'Shipping_full',
billing_full
texto COMENTARIO NULO '
Billing_full ', billing_firstname
varchar (255) COMENTARIO NULO' Billing_firstname ',
billing_lastname
varchar (255) COMENTARIO NULO 'Billing_lastname',
billing_telephone
varchar (255) COMENTARIO NULO 'Billing_telephone',
billing_postcode
varchar (255) COMENTARIO NULO 'Billing_postcode',
billing_country_id
varchar (255) COMENTARIO NULO 'Billing_country_id',
billing_region
varchar (255) COMENTARIO NULO 'Billing_region',
billing_street
varchar (255) COMENTARIO NULO 'Billing_street',
billing_city
varchar (255) COMENTARIO NULO 'Billing_city',
billing_fax
varchar (255) COMENTARIO NULO 'Billing_fax',
billing_vat_id
varchar (255) COMENTARIO NULO 'Billing_vat_id',
billing_company
varchar (255) COMENTARIO NULO 'Billing_company', CLAVE PRIMARIA ( entity_id
), ÍNDICE CUSTOMER_GRID_FLAT_GROUP_ID
( group_id
), ÍNDICE CUSTOMER_GRID_FLAT_CREATED_AT
( created_at
), ÍNDICE CUSTOMER_GRID_FLAT_WEBSITE_ID
( website_id
), ÍNDICE CUSTOMER_GRID_FLAT_CONFIRMATION
( confirmation
),ÍNDICE CUSTOMER_GRID_FLAT_DOB
( dob
), ÍNDICECUSTOMER_GRID_FLAT_GENDER
( gender
), Índice CUSTOMER_GRID_FLAT_BILLING_COUNTRY_ID
( billing_country_id
), FULLTEXT FTI_8746F705702DD5F6D45B8C7CE7FE9F2F
( name
, email
, created_in
, taxvat
, shipping_full
, billing_full
, billing_firstname
, billing_lastname
, billing_telephone
, billing_postcode
, billing_region
, billing_city
, billing_fax
, billing_company
)) COMENTARIO = 'customer_grid_flat' ENGINE = innodb charset = utf8 COLLATE = utf8_general_ci