As you can see on the print screen, there is a little problem. This message comes up several time after I want to update the portfolio. It's in Dutch, but it says: "Query isn't executed or data model can't be opened. The following error message is returned: MdxScript(model) (16, 55) calculation error in measure 'Report'[Equity Value]: A table with multiple values was put in, whilst one value was expected.
I've nothing changed and it all started at November 1st. Last data transfer was on October 31st, everything worked well at that date.