Me and my friends have been trying to create a Gym contest. But after entering the contest, we get the following page :

We can open the problem list page, but are not able to open any problem. Also, one more thing we noticed was that, those who had rating below 1600 were able to participate, and those with 1600+ were getting this error. I've never created a gym contest before, so if there is something I'm messing, please let me know.