Help Beginning of UIpath

Hey i need som help, just started uipath with the first lesson, when i am making the flowchart with the anyteller. When i inject the excel i follow all instructions from the video. When im press run, its starting but then it pops up "Get row item : Column ‘Cash In’ does not belong to table ". What do they mean? Thx for help.

@Al_Bje Follow this link

Exception while reading CSV for salesforce automation - #9 by richarddenton