В новом посте в dw-maintenance про это есть вроде бы (п.3):
"The three common problems right now: 1) you mistyped your username and/or password; 2) you need to agree to LiveJournal's new ToS before they'll permit you to access the data in your account; 3) an entry or entries in your LiveJournal account have a text encoding mismatch and you need to follow the link in the error message to fix it on LJ."
no subject
"The three common problems right now: 1) you mistyped your username and/or password; 2) you need to agree to LiveJournal's new ToS before they'll permit you to access the data in your account; 3) an entry or entries in your LiveJournal account have a text encoding mismatch and you need to follow the link in the error message to fix it on LJ."
http://dw-maintenance.dreamwidth.org/75631.html
То есть там должна выдаться какая-то ошибка с линком, и по этому линку надо сходить, чтобы пофиксить.