Add bundle backtest refact + fix whitelist

src/Managing.Application/Users/UserService.cs

@@ -64,8 +64,17 @@ public class UserService : IUserService
             throw new Exception($"Address {recoveredAddress} not corresponding");
         }
 
+        User user = null;
+
         // Check if account exist
-        var user = await _userRepository.GetUserByNameAsync(name);
+        try
+        {
+            user = await _userRepository.GetUserByNameAsync(name);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+        }
 
         if (user != null)
         {