Warning: Undefined variable $usa_ids in /var/www/vhosts/ground-guards.net/greentek.com/site.product.list.php on line 56

Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /var/www/vhosts/ground-guards.net/greentek.com/site.product.list.php:56 Stack trace: #0 /var/www/vhosts/ground-guards.net/greentek.com/site.product.list.php(56): in_array() #1 {main} thrown in /var/www/vhosts/ground-guards.net/greentek.com/site.product.list.php on line 56