question on the dlcs

so i have got halo on my account and i have al the dlc installed to the game but whenever i look to see if can play them it tells me to install the dlc and if i open the store menu propt it tells me to enter my password then runs into an error does anyone know of a solution im doing this from the xbox store

Try reinstalling it thru (I’m guessing you’re talking about the 360) the store. It worked for me last week when I hopped on OG Reach.