Mistake in the "select transfer date" window

If you are buying a player outside of a transfer window then End of Season/Fine Stagione would be the correct statement as you are buying a player to join your club in the next active transfer window which is either the beginning of the new calendar year for the winter transfer window or the end of the current season for the summer transfer window for most leagues. When buying a player you don't need to wait until their contract is finished for them to sign for your club, you just need to wait until the next open transfer window. The only time End of Contract/Fine Contratto would be appropriate is when signing a player on a Bosman transfer as here the player joins your club on a free transfer at the end of their current contract.