HannesC this only happens when we want to play dlc maps in zombies like Origins or Die rise, when we play in tranzit this error doesn't happen.
All my friends and i have the last plutonium version.

yesterday i was playing with my friends using radmin VPN and everything went okay, but now this problem appears, does anyone know how to fix this pls, thank u

i was wondering about this, do u have this problem or no?