diff --git a/src/Aiursoft.ChessServer/Models/Challenge.cs b/src/Aiursoft.ChessServer/Models/Challenge.cs
index 0e92a75..2f595e2 100644
--- a/src/Aiursoft.ChessServer/Models/Challenge.cs
+++ b/src/Aiursoft.ChessServer/Models/Challenge.cs
@@ -7,10 +7,10 @@ public class Challenge(Player creator)
     public Player Creator { get; set; } = creator;
     public string Message { get; set; } = "A chess room.";
 
-    public Player? Accepter { get; set; } = null;
+    public Player? Accepter { get; set; }
     
-    public int? GameId { get; set; } = null;
-    public Game? Game { get; set; } = null;
+    public int? GameId { get; set; }
+    public Game? Game { get; set; }
     
     public RoleRule RoleRule { get; set; } = RoleRule.Random;
     
diff --git a/src/Aiursoft.ChessServer/wwwroot/scripts/layout.js b/src/Aiursoft.ChessServer/wwwroot/scripts/layout.js
index 9f66267..6f02312 100644
--- a/src/Aiursoft.ChessServer/wwwroot/scripts/layout.js
+++ b/src/Aiursoft.ChessServer/wwwroot/scripts/layout.js
@@ -1,5 +1,5 @@
-import { autoTheme } from "/node_modules/@aiursoft/autodark.js/dist/esm/autodark.js";
-import { getUserName, changeName } from "/scripts/player.js";
+import { autoTheme } from "../node_modules/@aiursoft/autodark.js/dist/esm/autodark.js";
+import { getUserName, changeName } from "./player.js";
 autoTheme();
 
 async function loadName() {