Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction. The SQL statement executed was: INSERT INTO `fh_user_file`....

  SELECT check_stop_words(NEW.name) INTO stop_word_id;
  IF stop_word_id IS NOT NULL THEN
    SELECT word, type
      INTO stop_word_name, stop_word_type
      FROM fh_stop_word WHERE id = stop_word_id;
    IF stop_word_type = STOP_WORD_TYPE_NOTIFY THEN
      INSERT INTO fh_stop_word_notify (user_id, user_file_id, stop_word_id, old_file_name)
      VALUES (NEW.user_id, NEW.id, stop_word_id, NEW.name);
    ELSEIF stop_word_type = STOP_WORD_TYPE_BLOCK THEN
      SET NEW.blocked = 1;
      INSERT INTO fh_user_file_log (user_file_id, date, operation)
        VALUES (NEW.id, NOW(), 6);
    END IF;
  END IF;

CREATE FUNCTION check_stop_words(p_text TEXT)
  RETURNS int(11)
  SQL SECURITY INVOKER
BEGIN

  DECLARE c_word VARCHAR(255);
  DECLARE c_type TINYINT;
  DECLARE c_word_id INT UNSIGNED;
  DECLARE done INT DEFAULT FALSE;
  DECLARE sw_cursor CURSOR FOR SELECT id, word, type FROM fh_stop_word;
  DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

  OPEN sw_cursor;
  REPEAT
    FETCH sw_cursor INTO c_word_id, c_word, c_type;
    IF NOT done THEN
      IF p_text LIKE CONCAT('%', c_word, '%') THEN
        CLOSE sw_cursor;
        RETURN c_word_id;
      END IF;
    END IF;
  UNTIL done END REPEAT;

  CLOSE sw_cursor;
  RETURN NULL;
END

SQLSTATE[02000]: No data: 1329 No data - zero rows fetched, selected, or processed. The SQL statement executed was: INSERT INTO `fh_user_file`