Warning: mysqli_connect(): (HY000/2002): No route to host in /volume1/web/roomlist.php on line 13

Call Stack:
    0.0001     401392   1. {main}() /volume1/web/roomlist.php:0
    0.0001     401648   2. connectDB($config = ['servername' => 'innout3313.synology.me', 'username' => 'SY', 'password' => 'Apple1234.', 'dbname' => '매물장', 'port' => 3307]) /volume1/web/roomlist.php:40
    0.0002     401648   3. mysqli_connect($host = 'innout3313.synology.me', $user = 'SY', $password = 'Apple1234.', $database = '매물장', $port = 3307) /volume1/web/roomlist.php:13


Fatal error: Uncaught Error: Call to a member function query() on bool in /volume1/web/roomlist.php on line 41

Error: Call to a member function query() on bool in /volume1/web/roomlist.php on line 41

Call Stack:
    0.0001     401392   1. {main}() /volume1/web/roomlist.php:0