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Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 7 in C:\xampp\htdocs\AppServer\Sales_And_Inventory_System\includes\footer.php:120 Stack trace: #0 C:\xampp\htdocs\AppServer\Sales_And_Inventory_System\includes\footer.php(120): mysqli_query(Object(mysqli), 'SELECT ID, e.FI...') #1 C:\xampp\htdocs\AppServer\Sales_And_Inventory_System\pages\pos.php(185): include('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\AppServer\Sales_And_Inventory_System\includes\footer.php on line 120