Because the IRC bot that acts as a Discord<>IRC bridge has been banned from the entire EFNet network, the site shoutbox no longer works properly. Until the bot can connect again on EFNet, we have installed TitanEmbeds. It's unknown if it will work for everyone, but for now it's better than no shoutbox at all I guess.
Good that you have a temporary solution. A good question is, why was the bot banned? I hope it's not for something like a large amount of messages in a certain time frame, because it seems like that'd be an impossible issue to work around.
There are lots of false positive bans on EFNet network. It's a matter of changing the bot IP address or hostname or waiting until the ban expires.