Using a tag in a custom crafting station

Hello,

This issue might be easy to solve but i'm new and i've been scratching my head for a while,

So in my mod i have a station that make tagged item and transforms them into a specific item,

In the procedure i want the station to check if the item in the first slot is a tagged item and if the second slot is empty,

Then removes the items in the first and make just as much item in the second slot,

But the issue is when i put an Item in the slot nothing happens.

What am i doing wrong ?

http://image.noelshack.com/fichiers/2021/11/7/1616341289-wasterprocedure.png - The procedure

http://image.noelshack.com/fichiers/2021/11/7/1616341289-biotag.png - The tag