Bean 模块无法添加数据

当我添加block时出现这样的错误:

PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '0' for key 2: INSERT INTO {bean} (vid, delta, label, title, type, view_mode, data) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6); Array ( [:db_insert_placeholder_0] => 0 [:db_insert_placeholder_1] => test33 [:db_insert_placeholder_2] => test33 [:db_insert_placeholder_3] => test33 [:db_insert_placeholder_4] => home_introduction [:db_insert_placeholder_5] => default [:db_insert_placeholder_6] => a:1:{s:9:"view_mode";s:7:"default";} ) in drupal_write_record() (line 7106 of /var/www/dev/xkzhou/si/includes/common.inc).

Bean Error