Endless loop of asking me to "Switch Game User?"

Black Ops II Off Topic

So what happens is I try to join an online match and the map loading screen shows up then it shows select a class but within a second or two it brings me back to the map loading screen and it does this in an endless loop, it also won't let me access barracks. Can someone please tell me how to fix it.

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Registered: ‎15-06-2017