Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 in /confereneceLV/universal_code/ppt-page.php:12
Stack trace:
#0 /confereneceLV/universal_code/ppt-page.php(12): mysqli_query()
#1 {main}
thrown in /confereneceLV/universal_code/ppt-page.php on line 12