Devolution Password Server Ver. 6.0.2.0 Scheduler Problem

Hello all

Can someone Help me pleas?

We install a new Devolution Password Server to migrate the Old Enviroment and now have Problem with the Scheduler Service.

The Error Message is:

ArgumentException - Ein Element mit dem gleichen Schlüssel wurde bereits hinzugefügt.

bei System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
bei System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
bei Devolutions.Server.SettingManager.<>c__DisplayClass558_0.<GetAppSetting>b__0(DataRow r)
bei Devolutions.Utils.ExtensionUtils.ForEach[T](IEnumerable`1 list, Action`1 act)
bei Devolutions.Server.SettingManager.GetAppSetting(String folderInstallation)


In English:
"An Element with the Same Key was added before"


The Error apply every Minute.

https://ibb.co/rx05wkH




The Applikation Pool in IIS and the Service run with the same User that have the Databse access.



https://ibb.co/rx05wkH

User has also Local Rights to "run as service"

Server Overview

Devolution Password Server Version 6.0.2.0
Database Microsoft SQL Express 2017 64 Bit Version.
Windows Server 2016 Standard

Kind Regards,

Roman