No button in mobile version of dashboard

Hello, in the mobile version of dashboard I dont see the button on orders page, how to fix it?

I tried to add to admin emails the link of button, so I can directly send reminder from accessing the link like https://website.com/wp-admin/admin-ajax.php?action=niwoopr_ajax&order_id=9488

But after accessing the url I see the white page and as output “0”