add to cart error
all worked fine before and now i get this error when i add an item to my cart:
Warning: Missing argument 11 for WA_Store_Cart_Definition::AddToCart(), called in /home/xxxxx/public_html/xxxx/Products_Detail.php on line 124 and defined in /home/xxxxxx/public_html/xxxx/WA_eCart/WA_Store_Cart_PHP.php on line 28
Warning: Missing argument 12 for WA_Store_Cart_Definition::AddToCart(), called in /home/xxxxxx/public_html/xxxx/Products_Detail.php on line 124 and defined in /home/xxxxxx/public_html/xxxxx/WA_eCart/WA_Store_Cart_PHP.php on line 28
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxxx/public_html/xxxxx/WA_eCart/WA_Store_Cart_PHP.php:28) in /home/xxxxxx/public_html/xxxx/Products_Detail.php on line 140
any ideas?