Error when i try to modify a content with a video field

When i try to modify one of my content, i have this problem :
PDOException: SQLSTATE[HY000]: General error: 1366 Incorrect integer value: '' for column 'field_video_use_default_video_thumb' at row 1: INSERT INTO {field_data_field_video} (entity_type, entity_id, revision_id, bundle, delta, language, field_video_fid, field_video_thumbanail, field_video_use_default_video_thumb, field_video_player_dimensions) 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, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9); Array ( [:db_insert_placeholder_0] => node [:db_insert_placeholder_1] => 17 [:db_insert_placeholder_2] => 17 [:db_insert_placeholder_3] => post_mynocomment [:db_insert_placeholder_4] => 0 [:db_insert_placeholder_5] => fr [:db_insert_placeholder_6] => 231 [:db_insert_placeholder_7] => [:db_insert_placeholder_8] => [:db_insert_placeholder_9] => 640x350 ) dans field_sql_storage_field_storage_write() (ligne 425 dans /var/www/drupal/modules/field/modules/field_sql_storage/field_sql_storage.module).

Thanks.