Hi there Z0IVIBIES,
We're sorry to hear you are experiencing an issue with Zombies. Please let us know the platform you are on and how often you receive the error message you have listed above. Also, you mentioned several error messages you have received. Can you please provide those as well along with the game mode you were in and when you received the error messages (i.e. upon launching the game, during a match, etc.).
Additionally, indicate the type of connection you are on (wired/wireless).
If you haven't already done so, please try the following and let us know the results Activision Support