Try fix issues

Server/Entities/ShopVehicles.cs

@@ -21,5 +21,10 @@ namespace reallife_gamemode.Server.Entities
         public int? ShopId { get; set; }
         public Shop Shop { get; set; }
         public int Price { get; set; }
+
+        public override string ToString()
+        {
+            return "ShopVehicle";
+        }
     }
 }