ERROR: Underlying error message The specified cultural reference is not supported.

Hello
In order to be as clear as possible about the error I am receiving in POWER BI SERVICE, I explain my data modeling. From Power Query, I get 2 tables, “sales” and “banks” from the data source. Then I build a new “Calendar” table referring to the lowest date found in the “Sales” table, using:
List.Dates (Source, Number.From (Date.EndOfYear (DateTime.LocalNow ())) - Number.From (Source), #duration (1,0,0,0))
Once created these 3 tables, “I apply” and I leave Power Query. I apply the relationships between the Date tables of the “sales” table and “Date” of the “banks” table with “date” of the “calendar” table.
Once the relationships have been applied, I "update" the data and it does not return an error. The formats between the dates are the same, there are no blank spaces or null records.
I publish the dashboard in POWER BI Service. When I want to update the board in the cloud, I receive the following error:

I clarify that I have several clients with the same modeling methodology and they work perfectly, without errors.
This error started happening to me about 2 weeks ago.
I have updated both the Gateway and PBI Desktop. And I have not managed to solve this problem.
Could you help me?
Thank you