They claimed now that this problem/issue has been resolved.
Resolved - This incident has been resolved.
Mar 9, 20:07 UTC
Update - We are continuing to work on a fix for this issue.
Mar 9, 20:07 UTC
There's nothing change to this web wallet, it's always a buggy wallet, and anytime there are unexpected unknown errors from its users.
(.....)
It is already a sign to switch to other Bitcoin wallet.
I think why there are still lot of people using this Bitcoin wallet is because first, user friendly. New in Bitcoin will attract to this Bitcoin wallet since it is very easy to create, email address only which they don't know using centralized or custodian wallet is really not good.