Unable to login ROS v6.47.10 (long-term)

[sumansaggu]

Getting message
PEAR2\Net\RouterOS\DataFlowException: Invalid username or password supplied. in phar://C:/wamp64/www/PHP-Net_RouterOS/PEAR2_Net_RouterOS-1.0.0b6.phar/PEAR2_Net_RouterOS-1.0.0b6/src/PEAR2/Net/RouterOS/Client.php:175 Stack trace: #0 C:\wamp64\www\PHP-Net_RouterOS\test1.php(9): PEAR2\Net\RouterOS\Client->__construct('192.168.0.240', 'admin', 'admin321') #1 {main}