I can't log in after granting my team business plan.

Because of the many migration errors caused by the Adobe's new business profile policy,
I removed the business plan from my account in the adobe console, saved all my personal files locally, and tried the business plan again.

Now I am completely unable to log in through the business plan start mail.

It is possible to log in with my personal profile in a new browser session.
But when i try to configure a new business profile via invitation mail, i cannot log in as shown in the attached image.

(I believe that the attached Korean image will not be a problem for the answer.)

Even if I give up numerous problems with the new business profile policy, I want to be able to log in right away.

I look forward to advice from others who have had similar experiences,
or individual and specific solutions from Adobe Support Team.