Response: 
<br />
<b>Fatal error</b>:  Uncaught mysqli_sql_exception: Access denied for user 'tpaycomn_tpaycom'@'localhost' to database 'tpaycomn_vtu' in /home/tpaycomn/test.t-pay.com.ng/api/airtime/const.php:6
Stack trace:
#0 /home/tpaycomn/test.t-pay.com.ng/api/airtime/const.php(6): mysqli_connect()
#1 /home/tpaycomn/test.t-pay.com.ng/api/airtime/test.php(9): include('/home/tpaycomn/...')
#2 {main}
  thrown in <b>/home/tpaycomn/test.t-pay.com.ng/api/airtime/const.php</b> on line <b>6</b><br />