Wieldy does not start, due to missing addins folder

System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Program Files\Wieldy\Addins'.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.Directory.InternalGetFileDirectoryNames(String path, String userPathOriginal, String searchPattern, Boolean includeFiles, Boolean includeDirs, SearchOption searchOption) at System.IO.DirectoryInfo.GetFiles(String searchPattern, SearchOption
searchOption)
at System.IO.DirectoryInfo.GetFiles(String searchPattern) at Wieldy.Core.Addins.AddinHelper. (DirectoryInfo , Type ) at Wieldy.Core.Addins.AddinHelper. (String , Type ) at Wieldy.Core.Addins.AddinManager`2.Scan()
at Wieldy.Core.CommunicatorBase..ctor(Func`2 getPassword) at  ..ctor(Func`2 , Func`1 , Dispatcher ) at .OnStartup(StartupEventArgs ) at System.Windows.Application.<.ctor>b__0(Object unused) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate
catchHandler)