Database Error

SQLSTATE[23000]: Integrity constraint violation: 19 columns post_id, name are not unique

INSERT INTO post_attributes
(post_id, name, value)
VALUES
(:post_id, :name, :value)


Array
(
    [:post_id] => 1
    [:name] => title
    [:value] => Welcome!
)


#0 /srv/http/chyrp.net/site/demos/demo1/includes/class/Query.php(65): PDOStatement->execute(Array)
#1 /srv/http/chyrp.net/site/demos/demo1/includes/class/SQL.php(222): Query->__construct(Object(SQL), 'INSERT INTO pos...', Array, false)
#2 /srv/http/chyrp.net/site/demos/demo1/includes/class/SQL.php(273): SQL->query('INSERT INTO __p...', Array, false)
#3 /srv/http/chyrp.net/site/demos/index.php(432): SQL->insert('post_attributes', Array)
#4 {main}