Account disabled

Envato send message last day to inform me that
"This is a notice to inform you that as numerous DMCA notices have been lodged against your items, we are disabling your account immediately. You in fact appear to have re-uploaded the same DMCA’d item, after being specifically advised the item could not be resubmitted. This is a serious violation of our Content Policy. "

Now i am talk with author he return back his DMCA notice and i am promise him never upload that item again. He agree with me. Now what i do?

You would need to talk to support https://help.market.envato.com/hc/en-us/requests/new

That said I would be hugely surprised if they would ever allow you to reopen an account which has been closed for that reason.