kava Error: rosetta: (500) internal error

[zhangqichuan]

7:12AM INF service stop impl=PEX module=pex msg="Stopping PEX service" server=node
7:12AM INF service stop book=/kava/config/addrbook.json impl=AddrBook module=p2p msg="Stopping AddrBook service" server=node
7:12AM INF service stop impl=Reactor module=blockchain msg="Stopping Reactor service" server=node
7:12AM INF service stop impl=BlockPool module=blockchain msg="Stopping BlockPool service" server=node
7:12AM INF Saving AddrBook to file book=/kava/config/addrbook.json module=p2p server=node size=1285
7:12AM INF Closing rpc listener listener={"Listener":{}} module=server server=node
7:12AM INF RPC HTTP server stopped err="accept tcp [::]:26657: use of closed network connection" module=rpc-server server=node
7:12AM ERR Stopped accept routine, as transport is closed module=p2p numPeers=0 server=node
7:12AM ERR Error serving server err="accept tcp [::]:26657: use of closed network connection" module=server server=node
7:12AM INF Closing blockstore module=server server=node
7:12AM INF Closing statestore module=server server=node
7:12AM INF Closing evidencestore module=server server=node
Error: rosetta: (500) internal error
Usage:
kava start [flags]

Flags:
--abci string specify abci transport (socket | grpc) (default "socket")
--address string Listen address (default "tcp://0.0.0.0:26658")
--api.address string the API server address to listen on (default "tcp://localhost:1317")
--api.enable Define if the API server should be enabled
--api.enabled-unsafe-cors Define if CORS should be enabled (unsafe - use it at your own risk)
--api.max-open-connections uint Define the number of maximum open connections (default 1000)

[zhangqichuan]

How do I solve this problem?