Check game updates: Make sure Call of Duty: Black Ops Cold War is fully updated on the console or PC you're trying to play on. Game updates often fix problems and improve stability. Restart your console or PC: Try restarting your console or PC and try signing in to the problematic account again.

Yes, "Call of Duty: Black Ops 3" can be played offline. The game features both single-player and multiplayer modes, allowing players to enjoy the game without an internet connection. It can be played offline: You can play with bots.