diff --git a/backend/yjs/networking.yjs b/backend/yjs/networking.yjs
index cbabf91..11f534f 100755
--- a/backend/yjs/networking.yjs
+++ b/backend/yjs/networking.yjs
@@ -60,7 +60,7 @@ module networking {
             "msg":"no permission", "code":1
             });
         }
-        var ret = executeContract(Global.router, "updateLRS", arg);
+        var ret = executeContract(Global.router, "updateLRS", JSON.stringify(arg));
         var obj = ret.result;
         if (obj.result=="success" || obj.result == undefined) {
             obj.result = undefined;
@@ -83,7 +83,7 @@ module networking {
             "msg":"no permission", "code":1
             });
         }
-        var ret = executeContract(Global.router, "createLRS", arg);
+        var ret = executeContract(Global.router, "createLRS", JSON.stringify(arg));
         var obj = ret.result;
         if (obj.result=="success" || obj.result == undefined) {
             obj.result = undefined;
@@ -106,7 +106,7 @@ module networking {
             "msg":"no permission", "code":1
             });
         }
-        var ret = executeContract(Global.router, "deleteLRS", arg);
+        var ret = executeContract(Global.router, "deleteLRS", JSON.stringify(arg));
         var obj = ret.result;
         if (obj.result=="success" || obj.result == undefined) {
             obj.result = undefined;