The solution:
In my case, the error was caused by the Hungersoft One Step Checkout (HS_OneStepCheckout
) module.
I have fixed it in the app/code/HS/OneStepCheckout/view/frontend/layout/checkout_index_index.xml
file by a replacement from
<item name="component" xsi:type="string">HS_OneStepCheckout/js/view/summary/cart-items</item>
to
<item name="component" xsi:type="string">Magento_Checkout/js/view/summary/cart-items</item>