Problem with Empty Json

Cannot create Object, when zeit_total_daily is empty

Jugenddienst Stunden/Models/Hours.cs

@@ -1,5 +1,6 @@
 
 using CommunityToolkit.Mvvm.ComponentModel;
+using Newtonsoft.Json;
 
 namespace Jugenddienst_Stunden.Models {
 	public class Hours : ObservableObject {
@@ -9,7 +10,11 @@ namespace Jugenddienst_Stunden.Models {
 		public Dictionary<int,NominalWeek> nominal_week_api;
 		//public List<string> time_line;
 		public string zeit_total;
-		public Dictionary<int,decimal>? zeit_total_daily;
+
+		//https://stackoverflow.com/questions/29449641/deserialize-json-when-a-value-can-be-an-object-or-an-empty-array/29450279#29450279
+
+		[JsonConverter(typeof(JsonSingleOrEmptyArrayConverter<Hours>))]
+		public Dictionary<int,decimal> zeit_total_daily;
 		//public List<string> wochensumme;
 		public string overtime_month;
 		public string overtime;