In the past week, there were some problems with our Pylo auth servers. New accounts didn't receive activation emails.
We have fixed the bug and removed accounts that couldn't activate (received empty activation email), so you can now create new accounts and activate them. We are sorry for any inconvenience caused by this bug.
First peak on the operation of our procedure system that will replace event. After we release MCreator 1.7.9, expect some tutorials on how to get the most out of this system on our channel. Stay tuned!