Forbidden to create a new database connection and all operations on existing database connection

I’m getting a forbidden message when I try to turn on requires username option or disable signup on a existing database connection. I can’t even create a new database connection. Any help and advice?

is it because I’m on free tier? But it doesn’t make sense. I should be able to create two database maximum in free tier

Problem solved. I logout and log back in. Then it works. That’s weird.