Chat problem (PS4)

How can I rejoin the the chat? I left the global chat ages ago, and no options to join back.
Nothing happens if I press down = no channel options. (I already restarted the game ofc)

It’s OK now. Maybe there was some server/chat issues. Pls close/delete the thread, thanks!

I’m also having issues. Don’t know what buttons to push to get to where I can enter channel code…
Every window is empty?? Help!!