When I ran product_info.php, it noticed:
1146 - Table '******.TABLE_PRODUCTS_OPTIONS_PRODUCTS' doesn't exist
select pop_products_id_slave, products_name, products_price, products_tax_class_id, products_image from TABLE_PRODUCTS_OPTIONS_PRODUCTS, products_description pa, products pb WHERE pop_products_id_slave = pa.products_id and pa.products_id = pb.products_id and language_id = '4' and pop_products_id_master = '40' and products_status='1' order by pop_order_id, pop_id
But table "PRODUCTS_OPTIONS_PRODUCTS" is exist.
And there are 3 "Related Product" in my admin panel!!
How to fix it? thanks.