Hi,
Thank you for the details!
I believe the issue is caused by the “Sede” custom field filter: https://i.imgur.com/X2ABvuu.png
The price of those seem to be set to 0, but the range starts from 1. If you change the range from 0 – 20000 it should resolve the issue. If you are not using the filters, you can remove it as well, that is a much better solution.
