❓ Chat not working

guys, in my browser there used to show the little box for "Chat", it has gone. i tried other browsers and it's not showing. I went to my profile and clicked 'reset', 'defaults', and nothing yet.
how can i get it back?
thanks

looks like down rn

https://birdie.im/ss/i/mpgh.net/

this is IM server can always check.

but IM is down for everyone right now.