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 1 in /www/doc/www.napadyproanicku.cz/www/classes/Category.php:66 Stack trace: #0 /www/doc/www.napadyproanicku.cz/www/classes/Category.php(66): mysqli->query('SELECT * FROM c...') #1 /www/doc/www.napadyproanicku.cz/www/index.php(46): Category::getById(NULL) #2 /www/doc/www.napadyproanicku.cz/www/index.php(33): archive() #3 {main} thrown in /www/doc/www.napadyproanicku.cz/www/classes/Category.php on line 66