[15.0] [Intrastat_product] Cannot create a Product declaration

[QubiQBcn]

Module

intrastat_product

Describe the bug

I cannot creat a product declaration because there is an error. There is a function that is not defined in the code.

AttributeError: 'l10n.es.intrastat.product.declaration' object has no attribute '_compute_numbers'

To Reproduce

Go to Accounting > Reporting > Intrastat Product declaration

Expected behavior
Create a new Intrastat Product Declaration record.

Additional context
Add any other context about the problem here. (e.g. OS, Python version, ...)

[github-actions]

There hasn't been any activity on this issue in the past 6 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days.
If you want this issue to never become stale, please ask a PSC member to apply the "no stale" label.