Notice: Array to string conversion in /var/www/100gadgets.ru/public_html/newscript/system/add/product_to_print.php on line 460

Fatal error: Uncaught exception 'Exception' with message 'Error: Unknown column 'pp.product_idArray' in 'group statement'<br />Error No: 1054<br />SELECT pp.*, p.pwidth, p.pheight, SUM(IF(pov.product_id IS NULL, p.quantity, IF((pp.type_id IN (3,4,11) AND pov.option_value_id=70) OR (pp.type_id IN (1,2,7,9,10) AND pov.option_value_id=71), pov.quantity, 0))) AS quantity FROM print_to_products pp LEFT JOIN product p USING(product_id)LEFT JOIN product_description pd USING(product_id)LEFT JOIN product_option_value pov USING(product_id) WHERE 1  AND category_id='2871' AND pp.type_id IN (1, 2) GROUP BY pp.product_idArray ORDER BY quantity DESC LIMIT 0,1' in /var/www/100gadgets.ru/public_html/newscript/system/mysql2.php:38
Stack trace:
#0 /var/www/100gadgets.ru/public_html/newscript/system/add/product_to_print.php(460): MySQLNewscript2->query('SELECT pp.*, p....')
#1 /var/www/100gadgets.ru/public_html/newscript/system/add/prints4.php(86): ModelProductToPrint->get_prod_to_print(Array)
#2 /var/www/100gadgets.ru/public_html/newscript in /var/www/100gadgets.ru/public_html/newscript/system/mysql2.php on line 38