Submission status stuck in "submitted"

Our submission has been stuck in the “submitted” status for many hours, what’s going on?

Team name: Erin
We submitted 12 hours ago.

I meet the same issue. Please help. Thanks a lot!
Team name: bevdepth-6

Same here. Any help would be very appreciated!
My team name: COLA

My problem is solved. Thanks!

Could you share how do you solve the problem? My status is still “submitted”.