I have error logs for mysql cluster -[ERROR] NDB Binlog: Skipping locally defined table (no replies)

Hi,

The MySQL Cluster consist of mgmd 1 + sqld/ndbd 2.
I have some errors.
1.
2014-12-12 16:38:18 19795 [ERROR] NDB Binlog: Skipping locally defined table 'wordpress_db.seoul_14_kboard_board_attached' from binlog schema event 'ALTER TABLE `seoul_14_kboard_board_attached` ENGINE = ndbcluster' from node 5.

2.
2014-12-30 16:39:30 30705 [ERROR] NDB Binlog: Creating NdbEventOperation blob field 8 handles failed (code=4710) for REPL$wordpress_db/seoul_biz_list_2014
2014-12-30 16:39:30 30705 [ERROR] NDB Binlog:FAILED CREATE (DISCOVER) EVENT OPERATIONS Event: REPL$wordpress_db/seoul_biz_list_2014

why does it happen?
Please help me.