Want Transfer some Domain but Dashboard Show the Error Page fo

Hello

When i click the Domain - Transfer(Image No.1), I can see the manager page a few sec(Image No.2).
After then ther’re show the Error Page to me(Image No.3) :

And i tried to change the browser (Chrome / Edge / Safari) and 2PC & an iPad but it’s same thing.

I check the DevTools - Network, and looks like this source when posted and get 200 OK, then the Error Msg has been show(Image No.4).

Btw, why the new user can only upload 1 image in here?

I check the Console, and looks like this issue it may about the “.black” TLD.