This article explains what to do if you have an Error 27 message shown when registering with the Learning Management System (LMS).
When a learner completes registration the LMS shows an Error 27 message.
This error occurs when a user registers with the LMS then clicks on the back button in the web browser. This causes the web page to try to register the user again and show the Error 27 message.
Log into the LMS using your usual method, there should be no further issues.