Fatal error: Uncaught TypeError: Argument 1 passed to mysql_fetch_array() must be an instance of mysqli_result, bool given, called in /var/www/div_loginsystem/header.php on line 22 and defined in /var/www/div_loginsystem/lib/mysql_wrapper.inc.php:209
Stack trace:
#0 /var/www/div_loginsystem/header.php(22): mysql_fetch_array(false)
#1 /var/www/div_loginsystem/index.php(272): include('/var/www/div_lo...')
#2 {main}
thrown in /var/www/div_loginsystem/lib/mysql_wrapper.inc.php on line 209