Expression.Error: We cannot apply field access to the type List. BEX SAP

Hello,

I am trying to import the data from a BEX Query but every time I get the following error

"Expression.Error: We cannot apply field access to the type List."

As you can see below, the BEX query is very simple.

And here below the screenshot of the error in Power BI.

Could you please help me?

Also, Is there a way to import a hierarchy from SAP?

Thank you very much!