Just join the session again. You can try reload/refresh the current browser tab you are in or launch the session again as you did originally by clicking the green launch button.
You may have been kicked out of the session because your time was finished and in this case you will not be able to join again. In case you weren't finished and need to get in touch with your tutor you can send him/her a message through the messaging tool. Click here to see how to send a message.
I got kicked out of the classroom, what do I do?
Written by Nicholas T.