List using offset

I am trying to restrict the values of some cells to a list.

The values are taken from a structured table with 2 columns

I tried using this formula
=OFFSET(INDEX(Table1[Column2],MATCH("f",Table1[Column1],0)),0,0,COUNTIF(Table1[Column1],"f"))

but I get the message: "The formula you typed contains an error"

If I use the same formula with SUM and evaluate it I get the correct range.

How can I determine the error that excel is warning me about? I can't use structured tables in List formula?