Availability of Bitrix products?

Question

1C-Bitrix

I am making a cart in 1CBitrix version 18.
When the cart is displayed by a standard component, it says

"This product is currently not available."

Also, this product cannot be removed from the cart.
Quantity of goods is not zero.
In the settings, the purchase of goods with a zero balance is allowed
. Quantitative accounting is disabled.
Re-indexing the directory did.

Answer 1

Also, this product cannot be removed from the cart.

see js errors in console.

In the settings, the purchase of goods with a zero balance is allowed

in the settings of a specific product?
Try to remove it directly via api, I wonder if it will give an error.