diff --git a/Core/Helpers/ItemHelper.cs b/Core/Helpers/ItemHelper.cs
index f73341df..88a33edc 100644
--- a/Core/Helpers/ItemHelper.cs
+++ b/Core/Helpers/ItemHelper.cs
@@ -222,7 +222,7 @@ public class ItemHelper
     /// </summary>
     /// <param name="tpl">Item to look price up of</param>
     /// <returns>Price in roubles</returns>
-    public decimal GetItemPrice(string tpl)
+    public double GetItemPrice(string tpl)
     {
         throw new NotImplementedException();
     }
@@ -233,7 +233,7 @@ public class ItemHelper
     /// </summary>
     /// <param name="tpl">Item to look price up of</param>
     /// <returns>Price in roubles</returns>
-    public decimal GetItemMaxPrice(string tpl)
+    public double GetItemMaxPrice(string tpl)
     {
         throw new NotImplementedException();
     }
@@ -243,7 +243,7 @@ public class ItemHelper
     /// </summary>
     /// <param name="tpl">Items tpl id to look up price</param>
     /// <returns>Price in roubles (0 if not found)</returns>
-    public decimal GetStaticItemPrice(string tpl)
+    public double GetStaticItemPrice(string tpl)
     {
         throw new NotImplementedException();
     }
@@ -253,7 +253,7 @@ public class ItemHelper
     /// </summary>
     /// <param name="tpl">Items tpl id to look up price</param>
     /// <returns>Price in roubles (undefined if not found)</returns>
-    public decimal GetDynamicItemPrice(string tpl)
+    public double GetDynamicItemPrice(string tpl)
     {
         throw new NotImplementedException();
     }
diff --git a/Core/Helpers/NotifierHelper.cs b/Core/Helpers/NotifierHelper.cs
index b3d3ba62..d67f857b 100644
--- a/Core/Helpers/NotifierHelper.cs
+++ b/Core/Helpers/NotifierHelper.cs
@@ -4,20 +4,19 @@ using Core.Models.Eft.Ws;
 
 namespace Core.Helpers;
 
-[Injectable]
+[Injectable(InjectionType.Singleton)]
 public class NotifierHelper
 {
     private readonly HttpServerHelper _httpServerHelper;
+    protected WsPing ping = new WsPing();
 
     public NotifierHelper(
         HttpServerHelper httpServerHelper)
     {
         _httpServerHelper = httpServerHelper;
     }
-    public WsNotificationEvent GetDefaultNotification()
-    {
-        throw new NotImplementedException();
-    }
+
+    public WsNotificationEvent GetDefaultNotification() => ping;
 
     /**
      * Create a new notification that displays the "Your offer was sold!" prompt and removes sold offer from "My Offers" on clientside
@@ -55,6 +54,6 @@ public class NotifierHelper
 
     public string GetWebSocketServer(string sessionID)
     {
-        return $"{ _httpServerHelper.GetWebsocketUrl()}/ notifierServer / getwebsocket /{sessionID}";
+        return $"{_httpServerHelper.GetWebsocketUrl()}/notifierServer/getwebsocket/{sessionID}";
     }
 }