i have some problem in wallet .

no_connection_to_daemonE: no connection to daemon, request = getblocks.bin
2018-08-28 04:07:32.993 [RPC0]  ERROR   wallet.rpc      src/wallet/wallet_rpc_se
rver.cpp:109    Exception at while refreshing, what=no connection to daemon
2018-08-28 04:11:22.994 [RPC0]  ERROR   net.http        contrib/epee/include/net
/http_client.h:456      Unexpected recv fail
2018-08-28 04:11:22.994 [RPC0]  ERROR   wallet.wallet2  src/wallet/wallet2.cpp:1
699     !r. THROW EXCEPTION: error::no_connection_to_daemon
2018-08-28 04:11:22.995 [RPC0]  WARN    net.http        src/wallet/wallet_errors
.h:794  C:/msys64/DISTRIBUTION-BUILD/src/wallet/wallet2.cpp:1699:N5tools5error23
no_connection_to_daemonE: no connection to daemon, request = getblocks.bin
2018-08-28 04:11:22.995 [RPC0]  ERROR   wallet.rpc      src/wallet/wallet_rpc_se
rver.cpp:109    Exception at while refreshing, what=no connection to daemon
we are keep getting this error even while our daemon is running fine, It's even after we updated to latest release