Doge/BTC on Poloniex is currently under maintenance or experiencing wallet/network issues. Deposits and withdrawals will remain disabled until a solution is found, which may require an update from the DOGE team. Any updates must be tested and audited before enabling.
Why?............................................................................... ............maybe p... soon
Why?............................................................................... ............maybe p... soon
Poloniex trys to manipulate the market by freezing wallets. Best thing you can do is leaving Poloniex and trade on a DEX. Just look at he BTC/BTS price to see how this works.