Can’t play on Xbox one X

Been playing this game the last week, then a couple of days ago it stops letting me load my save file saying “The save file cannot be loaded without the treasures of the past DLC” the thing is I have the DLC installed I’ve even uninstalled the game and dlc and downloaded both again to no avail. I’m having a lot of fun with the game but I’m not sure what to do at this point and I’m reluctant to start a new play through for fear of losing my progress again.

Do you have the DLC visible in the i- game menu?