Congratulation!
This means, that the sender has recognized, that the transferred data were too confidential for a normal (insecure) email or the files were simply too large for email attachments. So this is really a reason for joy!
What you need to do now to access the data:
You do not need to register any user account
Simply open the email again and click on »Download files« in the top right-hand corner. This will take you to the download page.
If you are prompted for a password, please ask the sender for it by telephone.
You will find the sender's telephone number in the top left-hand corner of the email.
Don't worry, all contents that are transferred with Cryptshare were scanned for viruses and malware.
This is not the only reason why Cryptshare is a very secure transfer method.