1. Enable the extension
2. Click on "Login"
3. Click on "Sign Up" button
4. Fill in the fields and provide a valid e-mail address
5. Click "OK"
6. Wait for the e-mail
7. Click on the confirmation e-mail
8. You'll get a twig exception or if you are using index_dev.php you'll get the following error:

"User does not have access to "read" "content"