Windows 10　、　BitZeny Core v1.3.0.0
bitzeny.conf
rpcallowip=127.0.0.2
rpcuser=username
rpcpassword=password
rpcport=9980
daemon=1
server=1
gen=0

cpuminer_win64_sse4_20141110
minerd.exe -a yescrypt -o 127.0.0.2:9980 -u username -p password

以下エラーが出る。何が原因だろ？
[2017-12-18 00:48:27] 2 miner threads started, using 'yescrypt' algorithm.
[2017-12-18 00:48:27] Binding thread 0 to cpu 0
[2017-12-18 00:48:27] Binding thread 1 to cpu 1
[2017-12-18 00:48:27] Unrecognized block version: 3
[2017-12-18 00:48:27] json_rpc_call failed, retry after 30 seconds