Fatal error: Uncaught mysqli_sql_exception: Only one usage of each socket address (protocol/network address/port) is normally permitted in C:\xampp\htdocs\lowprice_us\web\config.php:15 Stack trace: #0 C:\xampp\htdocs\lowprice_us\web\config.php(15): mysqli_connect('127.0.0.1', 'root', Object(SensitiveParameterValue), 'shopping') #1 C:\xampp\htdocs\lowprice_us\web\index.php(19): require('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\lowprice_us\web\config.php on line 15