OJ Board

There are a couple of problems which seem to be receiving submission errors. The submission status sits at "Sent to judge" for 5 minutes or so and then changes to "Submission error". This is currently happening on problems 136 and 10340

I'm continually getting "Submission error" when submitting solutions for this problem. The submission stays with a verdict of "Sent to online judge" for 5 minutes and then goes to "Submission error". Any idea how to fix this?