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Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, null given in /home/malvernj/public_html/wp-content/plugins/event-tickets/src/views/v2/commerce/checkout/cart/footer/quantity.php:27 Stack trace: #0 /home/malvernj/public_html/wp-content/plugins/event-tickets/src/views/v2/commerce/checkout/cart/footer/quantity.php(27): array_filter(NULL, Object(Closure)) #1 {main} thrown in /home/malvernj/public_html/wp-content/plugins/event-tickets/src/views/v2/commerce/checkout/cart/footer/quantity.php on line 27