After upgrading to 0.12.2.4, terracoind crashes when start masternodes, but 0.12.1.8 is ok.
Please tell me what I need to do. No error message in debug.log

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.4 LTS"
$ ./terracoin-cli masternode count all
Total: 1240 (PS Compatible: 41 / Enabled: 326 / Qualify: 0)
$ ./terracoin-cli masternode start-all
error: couldn't connect to server
terracoin.conf is here:
rpcuser=user
rpcpassword=password
rpcallowip=127.0.0.1
listen=1
server=1
daemon=1
masternode=1
masternodeprivkey=privkey
rpcport=22355