Fatal error: Uncaught mysqli_sql_exception: No such file or directory in /var/www/html/my/classes/connection.php:3
Stack trace:
#0 /var/www/html/my/classes/connection.php(3): mysqli_connect('localhost', 'runtrainer_admi...', 'Mi7vG7Zn', 'runtrainer_db')
#1 /var/www/html/login.php(36): include('/var/www/html/m...')
#2 {main}
thrown in /var/www/html/my/classes/connection.php on line 3