Woocommerce Expert needed - Number of products on page incorrect

I need Woocommerce expert to fix the wordpress website. You must be able to write custom PHP code. I have an issue with the number of products per page, the first page is fine, but any other pages 2,3,4,5 have random amount of products per page. There is also an issue when using the "menu order" filtering option as the products dont display in the correct order.