Units For Sale Parts Only

Fatal error: Uncaught TypeError: array_unique(): Argument #1 ($array) must be of type array, null given in /var/www/vhosts/kdequipmentsales.com/httpdocs/assets/php/functions-search.php:1436 Stack trace: #0 /var/www/vhosts/kdequipmentsales.com/httpdocs/assets/php/functions-search.php(1436): array_unique() #1 /var/www/vhosts/kdequipmentsales.com/httpdocs/pages/parts-for-sale.php(293): make_Search_Form_Gator() #2 /var/www/vhosts/kdequipmentsales.com/httpdocs/assets/php/functions.php(20): require_once('...') #3 /var/www/vhosts/kdequipmentsales.com/httpdocs/index.php(37): make_Page() #4 {main} thrown in /var/www/vhosts/kdequipmentsales.com/httpdocs/assets/php/functions-search.php on line 1436