Error getting extracting the information from different invoices and document consists of fields and table using document understanding

Hello All,
My flow was running a month ago but now when again i am running my workflow i a getting an error :- Merge data table: Can not find table 2. So basically i am extracting the information from different invoices and document consists of fields and table using document understanding . Here in my flow i have Items as tables and it consists of columns PRODUCT_DESCRIPTION, QTY,UNIT_PRICE, AMOUNT. So as per logic the value for the Items table are storing in datasetResults.Tables(2)

I also saw the similar video and implemented using the same logic :- UiPath Document Understanding: Extract Tables Out of PDFsAnders Jensen Can some oneplease help me out to fix the error. Please find the screenshot of error which i am getting