I got a error like this when I runing the command "karbowanecd.exe --log-level=4 --seed-node=52.21.253.162:32347 --start-mining 'wallet address' --mining-threads 4"

17:09:50.772142 TRACE JSON-RPC request: {"jsonrpc":"2.0","method":"getlastblockh
eader","params":{}}
17:09:50.772142 TRACE JSON-RPC response: {"jsonrpc":"2.0","result":{"block_heade
r":{"depth":0,"difficulty":63266,"hash":"7fa8606e2104716f7774887f392b2a0e0285948
369998235a5f1755cefe95fd0","height":30,"major_version":1,"minor_version":0,"nonc
e":214135719,"orphan_status":false,"prev_hash":"cb5811a861beaee235797bc004e0a456
537a7880089fe437d0ffbd86e394d6fd","reward":38142607323146,"timestamp":1464599330
},"status":"OK"}}
17:09:52.956146 DEBUG Connection to 87.228.22.0:32347 failed: TcpConnector::conn
ect, ConnectEx failed, result=10061, 由于目标计算机积极拒绝，无法连接。