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 'AND (Id Is NULL OR Tipo="Preaviso") ORDER BY Id_Alerta DESC' at line 3 in /home/sigesaf/public_html/class/class.consulta.php:17 Stack trace: #0 /home/sigesaf/public_html/class/class.consulta.php(17): mysqli_query(Object(mysqli), 'SELECT * \nFROM ...') #1 /home/sigesaf/public_html/class/class.consulta.php(66): consulta->connect() #2 /home/sigesaf/public_html/php/sesion/alerta.php(27): consulta->getData() #3 {main} thrown in /home/sigesaf/public_html/class/class.consulta.php on line 17