I get the following error on auth with mysql on pop3 what am i missing or doing wrong

mysql config file

db_host = localhost #db_port = 3306 db_unix_socket = /var/lib/mysql/mysql.sock db = ADMIN db_user = mailmaster db_passwd = ******** db_client_flags = 0 default_pass_scheme = PLAIN password_query = SELECT MAILBOX_PASSWORD AS password FROM MAIL WHERE MAILBOX_USERNAME = '%n' AND MAILBOX_DOMAIN = '%d' #user_query = SELECT MAILBOX_ROOT AS home,uid,gid FROM MAIL WHERE MAILBOX_USERNAME = '%n' and MAILBOX_DOMAIN='%d'

dovecot config file base_dir = /var/run/dovecot/ protocols = imap pop3 imap_listen = * pop3_listen = * ssl_disable = yes log_path = /var/log/dovecot_log info_log_path = /var/log/dovecot_info_log log_timestamp = "%b %d %H:%M:%S " login_dir = /var/run/dovecot/login login = imap login_executable = /usr/local/libexec/dovecot/imap-login login_user = dovecot login_process_size = 16 login_process_per_connection = yes login_processes_count = 3 login_max_processes_count = 128 login_max_logging_users = 256 login = pop3 max_mail_processes = 1024 verbose_proctitle = no first_valid_uid = 500 #last_valid_uid = 0 default_mail_env = maildir:/home/mail/%d/%n/Maildir mail_cache_fields = MessagePart client_workarounds = oe6-fetch-no-newmail:outlook-idle: mailbox_check_interval = 300 mailbox_idle_check_interval = 30 mail_save_crlf = yes mail_read_mmaped = no maildir_copy_with_hardlinks = yes mbox_locks = dotlock fcntl mbox_read_dotlock = yes mbox_lock_timeout = 120 mbox_dotlock_change_timeout = 30 umask = 0077 mail_drop_priv_before_exec = no imap_executable = /usr/local/libexec/dovecot/imap imap_process_size = 256 pop3_executable = /usr/local/libexec/dovecot/pop3 pop3_process_size = 256 auth = default auth_mechanisms = plain auth_passdb = mysql /usr/local/etc/dovecot-mysql.conf auth_user = mailmaster auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@

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