Warning: mysqli_connect(): (HY000/1045): Access denied for user 'cellfow'@'dedi1009.jnb1.host-h.net' (using password: YES) in /usr/www/users/cellfow/cellfo/includes/dbconn.php on line 26

Fatal error: Uncaught TypeError: mysqli_error(): Argument #1 ($mysql) must be of type mysqli, bool given in /usr/www/users/cellfow/cellfo/includes/dbconn.php:26
Stack trace:
#0 /usr/www/users/cellfow/cellfo/includes/dbconn.php(26): mysqli_error(false)
#1 /usr/www/users/cellfow/cellfo/includes/database.php(2): require_once('/usr/www/users/...')
#2 /usr/www/users/cellfow/cellfo/includes/functions.php(7): require_once('/usr/www/users/...')
#3 /usr/www/users/cellfow/cellfo/includes/header.php(12): include('/usr/www/users/...')
#4 /usr/www/users/cellfow/cellfo/index.php(5): include('/usr/www/users/...')
#5 {main}
  thrown in /usr/www/users/cellfow/cellfo/includes/dbconn.php on line 26