Just to add to the above post.
So you cant play it at all OP, are you trying to play MP because you need gold to do that.
If the above suggestion does not solve it (it most likely will though) try this.
Sign in on your account.
On the ;My Xbox' page of the dashboard press 'A' while highlighting your Avatar.
Scroll right x2 to 'Online safety' & select 'Change settings'.
Then choose 'Customise'.
Scroll down to 'Member content' and then select 'Everyone'.
Press 'B' x1.
Save & Exit.
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