White screen in cart on woocommerce. Why does not it work?

Question

WordPress

Hello!
I use the woocommerce template to create an online store, version 2.6.8
After removing the last item from the cart, a white screen appears and the cart display in the current state can only be seen after refreshing the page again.
Also, when the product is removed from the cart, it can be returned by clicking on the "Cancel" button, when you click on this button, you are redirected to the admin panel, which should not happen.
An error like this appears in the logs: PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in... Thanks in
advance for your help!

Answer 1

Does it work fine on storefront template?