Yobit should be updating very very soon
.Updates to code releasing before 12th December 2017. 
how to creat wallet in Yobit while EPY is manternance?
Hello Dev,
I sent some EPY to yobit and it's almost lost.
See their response:
"Deposit/Withdrawal coin will be available after you upgrade the source code of the wallet. Unfortunately the developers are in no hurry to send you updates
- therefore, in order to avoid the loss of users, the network is not available.
If you have updated the source code of the coin, send us (
https://yobit.net/en/maintenance_request/ Free)and we will promptly correct the problem on the coin.
Thank you for contacted the support".
Please cant you update the source code of the EPY wallet or upgrade it?