My form isn't working

Hello!
The form that I use on my website isn't working! People cannot submit their information anymore, because the form isn't available to them.
I'd like to know what happened and how can it be fixed.
Thanks in advanced!
Milena

We are sorry for the inconvenience, we have been flooded with a lot of connections created by the DDoS attack. Our engineers are working to solve the problem, they informed to us this should be fully resolved by tomorrow.