We had no idea, this is the first I have heard of it. No notifications flagged up any issues. It is possibly down to our server management team, they did do some work on the server without asking us. I will check what they have done.
I am very sorry that this has affected your races and we will gladly postpone them if need be.
I am looking at the same screen as well. yesterday we had a problem where our race restarted 2-3 times after we finished it and then only recorded the last race race results.