Yes I can't not withdraw may coins either. It was working fine last week but now I get an error message. No response from support yet.
I wonder why we don't get any e-mails back from support?
While I suspect they are getting quite a few emails these days. Not to mention it's a Chinese site so there could be some language barriers. I am crossing my fingers for now it's only been a few days.
And I have tried the cn.bter address. While I have better luck actually logging in I still can't get my coins out.