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Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /disk2/dm/korapto/login_with_mysql_and_session/create_users_table.php:3 Stack trace: #0 /disk2/dm/korapto/login_with_mysql_and_session/create_users_table.php(3): mysqli_query() #1 {main} thrown in /disk2/dm/korapto/login_with_mysql_and_session/create_users_table.php on line 3