Warning: Item ID must be a string or integer in
Hello, I have this problem and I can not deal with it
the message appears when the order is finalized and at the back of orders
Warning: Item ID must be a string or integer in .../
wp-content/themes/classipress/includes/payments/item-registry.php on line 78
Warning: Item ID must be a string or integer in .../
wp-content/themes/classipress/includes/payments/item-registry.php on line 90