Task are no longer passing, but going back to that task let's me proceed without changing anything

using System;

namespace Treehouse.CodeChallenges
{
    class Program
    {

        static void Main()
        {
            while (true)
            {
            int scope = 0;
            Console.Write ("Enter the number of times to print \"Yay!\": ");
            var number = Console.ReadLine ();
            try
            {
                scope = Int32.Parse(number);
                if (scope < 0)
                {
                    Console.WriteLine ("You must enter a positive number");
                }
            }
            catch (FormatException)
            {
                Console.WriteLine ("You must enter in a whole number");
            }


            while (scope > 0) 
            {
                Console.Write ("Yay!");
                scope = scope - 1;
            }
        }
    }
}
}