Yeah I saw that pop-up in Sentry.io (our automatic error notification system), not seeing that here after signing up as a new user in London though.
Again seems your request went through and your account got verified. You can try making calls and see if those go through.
I’ve filed bugs and got your stack traces - will pass them to our dev team. I can only suggest trying a different browser or machine in case it’s an environment specific issue.
Again thanks for persevering!