Cannot go to Basket on frontend.

Steps:

1. Install Ibexa Commerce 3.2/3.3 on Postgres.
2. Create a product, fill all data e.g. price, aslo eCommerce tab.
3. Go to frontend.
4. Log in e.g. as admin.
5. Find the product.
6. Add it to basket.
7. Try to go to basket.

Actual result: Error 500
3.2

Impossible to access an attribute ("totalGross") on a null variable.

3.3

Impossible to access an attribute ("vatList") on a null variable.

Remarks: Does not occur on MySQL.