Where did I go wrong?

Where did I go wrong?

I went back to try Nimbus in order to evaluate the migration from Evernote to the Nimbus for Business subscription.

Steps I've taken

Trial version of Nimbus for business started
Entered via browser client
Tested import of some notes from EN

Android client started
The email address validation procedure returned a generic error.
Used the Sign in option
The Android client does not show notes uploaded via the browser client
Client Win installed
Same as above, no synchronization

What should I do?
Where did I go wrong?