refresh list coredata swifui - swift

Question

i maked core data and i fetch all data to List.
all working (add ,delete)
but! if the app inactive (back to background) and i open again to delete a row it crashes with error:
"Thread 1: "An NSManagedObjectContext cannot delete objects in other contexts."
Video problem: https://streamable.com/olqm7y
struct HistoryView: View {
#State private var history: [HistoryList] = [HistoryList]()
let coreDM: CoreDataManager
var dateFormatter: DateFormatter {
let formatter = DateFormatter()
formatter.dateFormat = "MM-dd-yyyy HH:mm"
return formatter
}
private func populateHistory(){
history = coreDM.getAllHistory()
}
var body: some View {
NavigationView{
VStack {
if !history.isEmpty {
List {
ForEach(history, id: \.self) { historyList in
HStack {
Text(dateFormatter.string(from: historyList.dateFlash ?? Date(timeIntervalSinceReferenceDate: 0)))
Text("\(historyList.timerFlash)s")
.multilineTextAlignment(.trailing)
.frame(maxWidth: .infinity, alignment: .trailing)
}
}.onDelete(perform: { indexset in
indexset.forEach { index in
let history = history[index]
coreDM.deleteHistory(history: history)
populateHistory()
}
})
}.refreshable {
populateHistory()
print("## Refresh History List")
}
} else {
Text("History Flashlight is Empty")
}
}
.onAppear {
populateHistory()
print("OnAppear")
}
}.navigationTitle("History Flashlight")
.navigationBarTitleDisplayMode(.inline)
}
}
struct HistoryView_Previews: PreviewProvider {
static var previews: some View {
HistoryView(coreDM: CoreDataManager())
}
}
CoreDataManager:
import CoreData
class CoreDataManager {
let persistentContainer: NSPersistentContainer
init(){
persistentContainer = NSPersistentContainer(name: "DataModel")
persistentContainer.loadPersistentStores { (description , error) in
if let error = error {
fatalError("Core Data Store failed \(error.localizedDescription)")
}
}
}
func saveHistory(timeFlash: Int, dateFlash: Date) {
let history = HistoryList(context: persistentContainer.viewContext)
history.timerFlash = Int16(timeFlash)
history.dateFlash = dateFlash
do {
try persistentContainer.viewContext.save()
} catch {
print("failed to save \(error)")
}
}
func getAllHistory() -> [HistoryList] {
let fetchRequest: NSFetchRequest<HistoryList> = HistoryList.fetchRequest()
do {
return try persistentContainer.viewContext.fetch(fetchRequest)
} catch {
return []
}
}
func deleteHistory(history: HistoryList) {
persistentContainer.viewContext.delete(history)
do {
try persistentContainer.viewContext.save()
} catch {
persistentContainer.viewContext.rollback()
print("Failed to save context \(error)")
}
}
}
public extension NSManagedObject {
convenience init(context: NSManagedObjectContext) {
let name = String(describing: type(of: self))
let entity = NSEntityDescription.entity(forEntityName: name, in: context)!
self.init(entity: entity, insertInto: context)
}
}
why?
I looked at the stackoverflow site but didn't find a solution