[BUG] It is not possible to apply a voucher in the cart in the production environment

[gioscaduto]

Describe the bug

It is not possible to apply a voucher in the cart in the production environment.
It is returned a error with code 500.
But in the development environment is OK.

To Reproduce

Steps to reproduce the behavior:

1. Add product in cart
2. Go to the cart
3. Apply a voucher
4. See error

Expected behavior

Voucher added successfully or message voucher is invalid or not found

Screenshots

Additional context

But in the development environment is OK.