Seems to be a hiccup with Cryptopia's wallet devs. They said the wallet dev team should be able to jump on the issue they're having and get Bulwark up and running once they're all back in the office (they're currently closed and wallet devs went home for the day).
That Shitopia tends to put most of altcoins' wallet under maintenance status recent weeks. We have to list Bulwark on other exchanges.