diff --git a/csharp/App/Backend/Database/Db.cs b/csharp/App/Backend/Database/Db.cs
index 959322d8f..b8100663e 100644
--- a/csharp/App/Backend/Database/Db.cs
+++ b/csharp/App/Backend/Database/Db.cs
@@ -1,5 +1,6 @@
 using System.Reactive.Linq;
 using InnovEnergy.App.Backend.DataTypes;
+using InnovEnergy.App.Backend.DataTypes.Methods;
 using InnovEnergy.App.Backend.Relations;
 using InnovEnergy.Lib.Utils;
 using SQLite;
@@ -68,12 +69,8 @@ public static partial class Db
         return success;
     }
 
-    
 
-  
-
-
-    private static void Cleanup(Int64 _)
+    private static async Task<Boolean> Cleanup(Int64 _)
     {
         await UpdateS3Urls();
         DeleteStaleSessions();