On February 13 I registered 2 domains at the third-party registrator:
During creation the account with the firstbit.site domain of problems was not, and it correctly works still.
Today I tried to create the account with the mistral.site domain, but as a result I receive an error:
“The selected domain cannot be added to an account”
To the address mistral.site the empty root directory of infinityfree of a hosting is displayed.
I cannot understand where this domain is connected.
Help to understand please.