Can't register

When I complete the form, I'm just getting -

1. Sorry, you must wait longer to create an account.
2. Something went wrong. Please try again or contact the administrator.
3. Please enter a name that is at least 3 characters long.
4. Please enter a valid email.
5. Please select a valid time zone.
6. Please enter a valid password.
7. Please enter a value for all required fields.