diff --git a/Assets/Scripts/DatabaseClasses/Player.cs b/Assets/Scripts/DatabaseClasses/Player.cs
index e66b376..60657d9 100644
--- a/Assets/Scripts/DatabaseClasses/Player.cs
+++ b/Assets/Scripts/DatabaseClasses/Player.cs
@@ -9,10 +9,17 @@ public class Player
     public string name;
     public string id;
 
+    [JsonConstructor]
+    public Player(string _name, string _id)
+    {
+        name = _name;
+        id = _id;
+    }
+
     public Player(string _name)
     {
         id = Guid.NewGuid().ToString();
-        SetName( _name);
+        SetName(_name);
     }
 
     /// <summary>
diff --git a/Assets/Scripts/RoomManager.cs b/Assets/Scripts/RoomManager.cs
index aef4f77..5693d9a 100644
--- a/Assets/Scripts/RoomManager.cs
+++ b/Assets/Scripts/RoomManager.cs
@@ -84,11 +84,13 @@ private void Initialize()
     /// </summary>
     private void WhichCodesAreAlreadyUsed(Action<List<int>> callback_OnCodesChecked)
     {
+        Debug.Log("Checking other rooms to get which codes are already used", this);
         List<int> alreadyUsedCodes = new List<int>();
         try
         {
             realtimeDB.Child("rooms").GetValueAsync().ContinueWithOnMainThread(task =>
             {
+                Debug.Log("looking into the online rooms", this);
                 if (task.IsFaulted)
                 {
                     Debug.LogException(task.Exception);
@@ -96,10 +98,13 @@ private void WhichCodesAreAlreadyUsed(Action<List<int>> callback_OnCodesChecked)
                 else if (task.IsCompleted)
                 {
                     DataSnapshot snapshot = task.Result;
+                    Debug.Log(snapshot.Value);
                     if (snapshot.Value != null)
                     {
-                        List<Room> onlineRooms = JsonConvert.DeserializeObject<List<Room>>(snapshot.GetRawJsonValue());
-                        foreach (Room r in onlineRooms)
+                        string JSON = snapshot.GetRawJsonValue();
+                        Debug.Log($"found some rooms :\n{JSON}", this);
+                        Dictionary<string, Room> onlineRooms = JsonConvert.DeserializeObject<Dictionary<string, Room>>(JSON);
+                        foreach (Room r in onlineRooms.Values)
                         {
                             Debug.Log($"Code {r.code} is already used by another party", this);
                             alreadyUsedCodes.Add(int.Parse(r.code));