seeing a constant error after installing the Advanced Warfare Havoc DLC which reads: A downloadable content package was removed or all profiles are signed out.

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If you are having issues with the ADVANCED WARFARE ZOMBIES...

Here's how I fixed mine.

You have to create a fake profile. It'll be a ghost profile on your console. Just pick a random avatar and once your one the dashboard with that account.

Load up your advance Warfare, go to the zombies. Once your zombies loads, but the big round button on your controller. Sign out of that fake profile. (Be sure not to leave your zombie lobby) ... Once signed out, sign into your real account.

Once you're signed in ... BOOM! Zombies! But until the issue is fixed, you have to use this fake profile to make it work.