Question on dlc... (LEGO Marvel Super Heroes 2)

Hi all. Today I downloaded lego marvel super heroes 2 dlc the war of infinity. I have a license. I put all the necessary files from the archive to the game directory. All right! I did everything as it should. And when I entered the game there was no dlc. No levels, no characters. I heard you need one file to do something... and I don't remember! I don't know what to do else...