I am last use yobit exchange at 1.00AM and deposit some coin but now i am try to access their site it's not work. They did not give any notice!! Anyone know what is the problem?? Already many money lost in cryptopia Exchange!!! 
Now you can able to access site without problem right. Here every thing is fine for me. I have checked it just before with my friend as well.
If you have any issues you may write about that to the support team.
They may need sometime to respond you for your problem.