Missing fragments

Good afternoon. Thank you, I am grateful for the returned Endurance blueprints, but what about the blueprints of Mace and Ackbar? From 50 lvl to 60 lvl, every 2 levels, a fleet training challenge opens, for 52 levels, Grand Moff Tarkin and his ship are given, for 54 lvl 40 blueprints of Mace and Akbar and 10 blueprints of Ackbar's ship, and for 56 lvl also 40 blueprints of Ackbar and Mace and 10 Mace's ship blueprints. And the problem is that I didn't get the challenge reward at level 56, after passing the challenge an error appeared and the restart game button appeared. At the moment, I can't even complete daily tasks due to the absence of Mace and Aсkbar, who can be obtained at level 56 for the challenge that I have passed.