Hello Lilian-
Thanks for reaching out, and thanks for your purchase of a Cloud WordPress staging site bundle.
I double-checked on your new account, and it does look like it’s still waiting on the email confirmation. Double-check your email for my******5@p************l.com, and also check in your Spam folder just in case. I’ve re-sent the email confirmation to you as well.
When you change the keys and salts, it’s expected that you will be logged out. Changing salts and keys logs out all currently-logged-in users. It’s tough to say what caused the “Location is experiencing issues” error (that message indicates that there has been a 5XX error on the site) but it’s possible that a typo in your wp-config.php caused it if you had edited that file manually.