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Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /home/u698247725/domains/fantasianerd.com/public_html/php/addToCart.php:41 Stack trace: #0 /home/u698247725/domains/fantasianerd.com/public_html/php/addToCart.php(41): in_array() #1 {main} thrown in /home/u698247725/domains/fantasianerd.com/public_html/php/addToCart.php on line 41