You should have received an email with details. I’ve never done this before but tech support walked me thru. See if link works. I will private email you username and password.
You were too late I’m afraid. I’ve already sorted that out! You can now access the admin trees page again. Leave my Dreamhost access as it is for a day or two, just in case, then you can have them remove it – unless you want to get them to also give me access to the MySQL8 test site?? It woulld certainly help.