Great to see that your enquiry has been shared by our Social Team.
Are you able to clarify which internet browser you are using when trying to access the MYOB Essentials site?
MYOB Essentials works best when being accessed by Google Chrome. If you are using Google Chrome, you may need to clear out your internet browsers cache. The webpage Refresh your cache does give great instructions on how to do this for Google Chrome.
Alternatively, you could go to our MYOB homepage (Australia | New Zealand) and click on Sign in >> MYOB Essentials and see if you are able to see the login window.