Warning: mysqli_query() expects parameter 1 to be mysqli, null given in /home/nylogosol/system/model_logic_main.php on line 507

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in /home/nylogosol/system/functions_system.php on line 1715
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 1