For certs ziti is managing, it sure seems reasonable that it they’d renew but that either didn’t happen or there’s a big preventing it from succeeding. I will see if I can come up with a short set of steps that will get you back running. I would think this is only a matter of generating a new certificate for your controller using the key created during the quickstart.
I expect your identities are failing to connect to the controller and you can’t use the ziti cli. Can you confirm some kind of pki related error in the client logs?
I would think this will be one ziti pki command, followed by a config update and controller restart. I’ll get cracking on it