There is an option to check database is connected successfully using the host, username and password details. If it shows a green message then only we can proceed with the installation process. The manually creating database should not be the issue. You can check details using database management tools adminer link => https://www.adminer.org/
You can try PHP mySQL connection with below script
<?php $servername = "localhost"; $username = "username"; $password = "password"; // Create connection $conn = new mysqli($servername, $username, $password); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } echo "Connected successfully"; ?>
