$ zrok enable ....
the zrok service returned an error: [POST /enable][500] enableInternalServerError
there was a problem enabling your environment!
you are trying to use the zrok service at: https://api-v1.zrok.io
you can change your zrok service endpoint using this command:
$ zrok config set apiEndpoint
(where newEndpoint is something like: https://some.zrok.io)
I tested my environment and errors persisted on both v1 and v2.
UPDATE: I tested again 12 hours later, and things worked again for me.