Error: Invalid withdrawal address entered.

When I'm trying to withdraw ERA from coinexchange to the windows wallet.

Why this show up?

Wallet is synchronized.

There were pumps in the past when they started cooperation with games like CS or LOL

They changed the date of release of the new core protocol. (And the date of DGB b-day???)

"The latest version of the DigiByte core protocol is under development and we are tentatively planning a May 2017 release after DigiByte's 3rd birthday."

So I don't know what is going on.

I asked the team in comment on FB, but they didn't answer  


EDIT:
Well, I've found sth:

"Note: We had originally anticipated a beta release by the third anniversary but do to complications with our multi-algo implementation we were not able to get a fully stable version developed. We would like to invite the community to participate in the 4.1.3 development and release over the next few months. We also have recently put the majority of our core development resources into the new DiguSign platform and are actively looking for other developers to assist with 4.1.3 testing."