sometimes I get completely random crashes, the problem is that I can't debug them or fix them because I have no clue where to start.
Here's a StackTrace from Mobile Center.
Xamarin.Forms / happens only on Android.
ThrowHelper.ThrowInvalidOperationException (System.ExceptionResource resource)
List`1+Enumerator[T].MoveNextRare ()
List`1+Enumerator[T].MoveNext ()
Enumerable.TryGetFirst[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate, System.Boolean& found)
Enumerable.FirstOrDefault[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate)
Calendar+<ChangeCalendar>c__AnonStorey7.<>m__0 ()
Thread+RunnableImplementor.Run ()
IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this)
(wrapper dynamic-method) System.Object:71e19f9c-e626-431a-8741-76f2e9d766a8 (intptr,intptr)