How to fix an error in VirtueMart when the one-page checkout is disabled?

Question

Joomla

Worth J 3.9.1, VM 3.4.2
There was a problem with the one-page shopping cart disabled in the settings.
If I click on "change shipping" in the cart, I get a bunch of errors:

Notice: Undefined property: VirtueMartViewCart::$checkout_task in C:\OSPanel\domains\virtuemart.local\components\com_virtuemart\views\cart\tmpl\default.php on line 33
Notice: Undefined property: VirtueMartViewCart::$userFieldsCart in C :\OSPanel\domains\virtuemart.local\components\com_virtuemart\views\cart\tmpl\default_address.php on line 34
Warning: Invalid argument supplied for foreach() in C:\OSPanel\domains\virtuemart.local\components\com_virtuemart \views\cart\
tmpl\default_address.php on line 38
Warning: Invalid argument supplied for foreach() in C:\OSPanel\domains\virtuemart.local\components\com_virtuemart\views\cart\tmpl\default_address.php on line 38
0 Call to a member function createPriceDiv() on null C: \OSPanel\domains\virtuemart.local\components\com_virtuemart\views\cart\tmpl\default_pricelist.php on line 128

all files are standard, "out of the box" and I have not yet applied my crooked little hands to them :)