Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1327 Undeclared variable: HARD' in /home/nail/ftp/app/services/productsServiceFunctions.php:282 Stack trace: #0 /home/nail/ftp/app/services/productsServiceFunctions.php(282): PDO->query('SELECT DISTINCT...') #1 /home/nail/ftp/app/partials/produkty.php(42): getProductsOfCategory('71', 0, ' HARD') #2 /home/nail/ftp/index.php(406): include('/home/nail/ftp/...') #3 {main} thrown in /home/nail/ftp/app/services/productsServiceFunctions.php on line 282