Solutions to this problem cannot be sumbitted now!

I am trying to submit a solution to this problem. But it raises an error: Solution to this problem cannot be submitted now.
@CodeChef Team,
Please look into this. Similar errors were reported before. But no solution has been provided by your team. Why is it that I can’t submit a solution to a particular problem ?

Thanks in advance

This is fixed now. We truly regret such a long delay. In case you face it again on any problem, please send us an email to