CCR1016-12s-1s+ configured with PPPOE for about 250 Clients - crashed

Good morning I have a CCR1016-12s-1s+ bought new out of the box. I have it configured with PPPOE for about 250 Clients. I have a problem for example when I restart an OLT that disconnect several PPPOE the equipment hangs the CCR. or when I disconnect them manually by the active connections also hangs the CCR. The same happens when the power goes out in a sector and 80 clients are disconnected, the CCR equipment hangs. Previously I had a RB4011 and it had never crashed.

Which software version?