Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /home/nationwidevehicl/public_html/supplier-register.php:88 Stack trace: #0 /home/nationwidevehicl/public_html/supplier-register.php(88): in_array('51', NULL) #1 {main} thrown in /home/nationwidevehicl/public_html/supplier-register.php on line 88