Warning: mysqli_connect(): (HY000/2002): Connection refused in /home/shrianshtours/public_html/config.php on line 14

Fatal error: Uncaught ArgumentCountError: mysqli_error() expects exactly 1 argument, 0 given in /home/shrianshtours/public_html/config.php:14 Stack trace: #0 /home/shrianshtours/public_html/config.php(14): mysqli_error() #1 /home/shrianshtours/public_html/invoice.php(2): include('/home/shriansht...') #2 {main} thrown in /home/shrianshtours/public_html/config.php on line 14