Warning: Undefined array key "price" in /var/www/html/tcgfriends/app/classes/class.Card.php on line 22

Fatal error: Uncaught TypeError: Card::calculate_ebay_buyer_protection_fee(): Argument #1 ($price) must be of type float, null given, called in /var/www/html/tcgfriends/app/classes/class.Card.php on line 22 and defined in /var/www/html/tcgfriends/app/classes/class.Card.php:152 Stack trace: #0 /var/www/html/tcgfriends/app/classes/class.Card.php(22): Card::calculate_ebay_buyer_protection_fee() #1 /var/www/html/tcgfriends/controllers/page.playset.php(22): Card->load_playset() #2 /var/www/html/tcgfriends/app/core/bootstrap.php(125): include_once('...') #3 /var/www/html/tcgfriends/public/index.php(4): include_once('...') #4 {main} thrown in /var/www/html/tcgfriends/app/classes/class.Card.php on line 152