Connection Lost - n8n cloud

Hi! New here!
Looking for ways to learn how to create flows with the n8n

Thing is… I just created my user, started creating my first flow.. and all of a sudden, got a “connection lost” message on the top right of the screen and nothing works

I literally just want to learn how to create the flows… I saw configurations, I saw I can self host… but I’m not using any of that, I’m just using n8n’s cloud, clicked ‘start’ and got the message… how can I adjust that?