diff --git a/jsonrpc/client/client_xlayer.go b/jsonrpc/client/client_xlayer.go
index 3c9420b415..98bd89e535 100644
--- a/jsonrpc/client/client_xlayer.go
+++ b/jsonrpc/client/client_xlayer.go
@@ -25,7 +25,7 @@ func JSONRPCRelay(url string, request types.Request) (types.Response, error) {
 	defer httpRes.Body.Close()
 
 	if httpRes.StatusCode != http.StatusOK {
-		return types.Response{}, fmt.Errorf("%v - %v", httpRes.StatusCode, string(resBody))
+		return types.Response{}, fmt.Errorf("http error: %v - %v", httpRes.StatusCode, string(resBody))
 	}
 
 	var res types.Response
@@ -33,5 +33,8 @@ func JSONRPCRelay(url string, request types.Request) (types.Response, error) {
 	if err != nil {
 		return types.Response{}, err
 	}
+	if res.Error != nil {
+		return types.Response{}, fmt.Errorf("response error: %v - %v", res.Error.Code, res.Error.Message)
+	}
 	return res, nil
 }