Error 500 - Debian 11 about postfixadmin HOT 8 CLOSED

mysql -u root -padmin -e "DROP DATABASE IF EXISTS MAIL; DROP USER IF EXISTS 'postfix'@'localhost';"

mysql -u root -padmin -e "CREATE DATABASE IF NOT EXISTS MAIL; CREATE USER IF NOT EXISTS 'postfix'@'localhost' IDENTIFIED BY 'admin';"
mysql -u root -padmin -e "GRANT ALL PRIVILEGES ON MAIL.* TO 'postfix'@'localhost';"
mysql -u root -padmin -e "ALTER USER postfix@localhost IDENTIFIED VIA mysql_native_password USING PASSWORD('admin');"
mysql -u postfix -padmin -e "SHOW DATABASES;"

+--------------------+
| Database           |
+--------------------+
| MAIL               |
| information_schema |
+--------------------+

<?php
$CONF['database_type']     = 'mysqli';
$CONF['database_host']     = 'localhost';
$CONF['database_name']     = 'MAIL';
$CONF['database_user']     = 'postfix';
$CONF['database_password'] = 'admin';
$CONF['configured']        = true;
?>

[php7:error] PHP Fatal error:  
Uncaught Exception: DEBUG INFORMATION: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'MAIL.config' doesn't exist<br/> Check your error_log for the failed query in /srv/postfixadmin/functions.inc.php:1872\nStack trace:\n#0 /srv/postfixadmin/functions.inc.php(1821): db_query()\n#1 /srv/postfixadmin/functions.inc.php(2159): db_query_one()\n#2 /srv/postfixadmin/public/login.php(40): check_db_version()\n#3 {main}\n  thrown in /srv/postfixadmin/functions.inc.php on line 1872

==> /var/log/mail.log <==
Oct 31 13:48:23 mail dovecot: imap-login: Disconnected (auth failed, 2 attempts in 13 secs): user=<marc>, method=PLAIN, rip=192.168.10.2, lip=192.168.10.3, TLS, session=</VEwkQIJIevAqAoC>

==> /var/log/mail.info <==
Oct 31 13:48:23 mail dovecot: imap-login: Disconnected (auth failed, 2 attempts in 13 secs): user=<marc>, method=PLAIN, rip=192.168.10.2, lip=192.168.10.3, TLS, session=</VEwkQIJIevAqAoC>

==> /var/log/mail.log <==
Oct 31 13:48:41 mail dovecot: imap-login: Disconnected (auth failed, 2 attempts in 18 secs): user=<[email protected]>, method=PLAIN, rip=192.168.10.2, lip=192.168.10.3, TLS, session=<UZDukQIJJOvAqAoC>

==> /var/log/mail.info <==
Oct 31 13:48:41 mail dovecot: imap-login: Disconnected (auth failed, 2 attempts in 18 secs): user=<[email protected]>, method=PLAIN, rip=192.168.10.2, lip=192.168.10.3, TLS, session=<UZDukQIJJOvAqAoC>