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 '-20,20' at line 1 in C:\science\includes\mysql_class.php:79 Stack trace: #0 C:\science\includes\mysql_class.php(79): mysqli_query(Object(mysqli), 'select * from i...') #1 C:\science\includes\mysql_class.php(116): Database->query('select * from i...') #2 C:\science\includes\sql_functions.php(1237): Database->fetch_all_array('select * from i...') #3 C:\science\more_infor.php(65): get_information_list(4, '') #4 {main} thrown in C:\science\includes\mysql_class.php on line 79