After logging in I see: “403 Access Forbidden – You don’t have permission to access this page”.
I am the only admin on this org, and now I also can’t create a new Developer org because this email is already registered and personal emails are not accepted. Can you please:
Restore my admin access to this dev org, OR
Release / change the admin email on this org so I can register a new Developer org?
Also, can you please guide if it is feasible to have a OKTA dev account for testing made using @gmail domain?
Signing up for the Free Trial or Integrator Free org works only with your work email, so you won’t be able to use your Personal Email to create a new org.
If your corporate email provider supports you can try using addressing/subaddressing as mentioned in the article here -