Upload ERROR server gRPC stream error response_ Performance Problem?

hi Storj team,
have an UPLOAD ERRORS:
here short from my log FILES.
is this a performance problem?

ERROR server gRPC stream error response {“error”: “piecestore protocol: unexpected EOF”, “errorVerbose”: “piecestore protocol: unexpected EOF\n\tstorj.io/storj/storagenode/piecestore.(*Endpoint).doUpload:274\n\tstorj.io/storj/storagenode/piecestore.(*Endpoint).Upload:158\n\tstorj.io/storj/pkg/pb._Piecestore_Upload_Handler:1070\n\tstorj.io/storj/pkg/server.(*Server).logOnErrorStreamInterceptor:23\n\tgoogle.golang.org/grpc.(*Server).processStreamingRPC:1127\n\tgoogle.golang.org/grpc.(*Server).handleStream:1178\n\tgoogle.golang.org/grpc.(*Server).serveStreams.func1.1:696”}

thank you for help…