upgrade plan Organization

when trying to update the plan, Figma gives me this error, although the mail is up to date and working. How to solve this issue?

" Figma Organization only allows work emails

To continue with your upgrade to Figma Organization, you will need to be using a work email address. Please change the email address of your account to proceed."

Hey @esports, thank you for reaching out!

To confirm, were you intending to upgrade to the organization plan specifically?

If so, the organization plan requires that your account email is using a custom domain and not a publicly accessible one (gmail.com, yahoo.com, hotmail.com etc).

Please let me know if you were using an email address with a custom domain.