Warning: session_start(): Session cannot be started after headers have already been sent in /var/www/html/include/header.html on line 3

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, string given in /var/www/html/forms/ins_mi_forms.php:9 Stack trace: #0 /var/www/html/forms/ins_mi_forms.php(9): mysqli_query() #1 /var/www/html/forms/forms_ins_mi.php(183): getData() #2 {main} thrown in /var/www/html/forms/ins_mi_forms.php on line 9