ThreadRPCServer method=submitblock
ERROR: CheckProofOfWork() : nBits below minimum work
ERROR: CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
Devs pm me if you need anything else..
It's happened a few times already, big diff changes due to hashrate variations and timestamps in wrong order, i think..
Block 386228 has a time that is 3512 seconds earlier than block 386227. This triggers a bug in many coins which choke when trying to calculate the next difficulty. PoW mining is not possible once this happens. Looks like DMD doesn't have the required fix, so the network will remain stalled until a new client is released.
(Actually, there is a way to resurrect the network to get around this stall, which I have done for two coins... but it looks like the dev(s) are taking care of this coin.)